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28127940558848 = 21413881149899
BaseRepresentation
bin1100110010101000010111…
…11001111100000000000000
310200121000010112120200222122
412121110023321330000000
512141322010240340343
6135453444132223412
75632114405604654
oct631241371740000
9120530115520878
1028127940558848
118a64aa1173819
1231a347246ab68
1312905b81c2890
146d3584676a64
1533ba13e5a068
hex19950be7c000

28127940558848 has 120 divisors (see below), whose sum is σ = 60650576708400. Its totient is φ = 12967304232960.

The previous prime is 28127940558829. The next prime is 28127940558899. The reversal of 28127940558848 is 84885504972182.

28127940558848 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187571003 + ... + 187720901.

It is an arithmetic number, because the mean of its divisors is an integer number (505421472570).

Almost surely, 228127940558848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28127940558848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30325288354200).

28127940558848 is an abundant number, since it is smaller than the sum of its proper divisors (32522636149552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28127940558848 is an equidigital number, since it uses as much as digits as its factorization.

28127940558848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150821 (or 150795 counting only the distinct ones).

The product of its (nonzero) digits is 412876800, while the sum is 71.

The spelling of 28127940558848 in words is "twenty-eight trillion, one hundred twenty-seven billion, nine hundred forty million, five hundred fifty-eight thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 256 416 512 832 881 1024 1664 1762 2048 3328 3524 4096 6656 7048 8192 11453 13312 14096 16384 22906 26624 28192 45812 53248 56384 91624 106496 112768 149899 183248 212992 225536 299798 366496 451072 599596 732992 902144 1199192 1465984 1804288 1948687 2398384 2931968 3608576 3897374 4796768 5863936 7217152 7794748 9593536 11727872 14434304 15589496 19187072 23455744 31178992 38374144 46911488 62357984 76748288 93822976 124715968 132061019 153496576 187645952 249431936 264122038 306993152 498863872 528244076 613986304 997727744 1056488152 1227972608 1716793247 1995455488 2112976304 2455945216 3433586494 3990910976 4225952608 6867172988 7981821952 8451905216 13734345976 15963643904 16903810432 27468691952 31927287808 33807620864 54937383904 67615241728 109874767808 135230483456 219749535616 270460966912 439499071232 540921933824 878998142464 1081843867648 1757996284928 2163687735296 3515992569856 7031985139712 14063970279424 28127940558848