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30347032512 = 263251629711
BaseRepresentation
bin11100010000110100…
…101111011111000000
32220022221021222111010
4130100310233133000
5444122320020022
621535150120520
72123012343306
oct342064573700
986287258433
1030347032512
1111963121765
125a6b1b0140
132b2824c694
14167c582276
15bc932850c
hex710d2f7c0

30347032512 has 56 divisors (see below), whose sum is σ = 80613211392. Its totient is φ = 10075360000.

The previous prime is 30347032511. The next prime is 30347032559. The reversal of 30347032512 is 21523074303.

It is a self number, because there is not a number n which added to its sum of digits gives 30347032512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30347032511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266664 + ... + 363047.

It is an arithmetic number, because the mean of its divisors is an integer number (1439521632).

Almost surely, 230347032512 is an apocalyptic number.

30347032512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30347032512 is an abundant number, since it is smaller than the sum of its proper divisors (50266178880).

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

30347032512 is a wasteful number, since it uses less digits than its factorization.

30347032512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629977 (or 629967 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The spelling of 30347032512 in words is "thirty billion, three hundred forty-seven million, thirty-two thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 251 502 753 1004 1506 2008 3012 4016 6024 8032 12048 16064 24096 48192 629711 1259422 1889133 2518844 3778266 5037688 7556532 10075376 15113064 20150752 30226128 40301504 60452256 120904512 158057461 316114922 474172383 632229844 948344766 1264459688 1896689532 2528919376 3793379064 5057838752 7586758128 10115677504 15173516256 30347032512