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42881027121272 = 2347142779919611
BaseRepresentation
bin10011100000000000001000…
…11000111010000001111000
312121211101102111201211202202
421300000010120322001320
521110030320420340042
6231111134422045332
712014023553365064
oct1160000430720170
9177741374654682
1042881027121272
11127328179a408a
124986769279848
131ac0881955072
14a8364a636aa4
154e5679747632
hex27000463a078

42881027121272 has 32 divisors (see below), whose sum is σ = 82170148273920. Its totient is φ = 20969626950240.

The previous prime is 42881027121271. The next prime is 42881027121277. The reversal of 42881027121272 is 27212172018824.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42881027121271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39423254 + ... + 40496357.

It is an arithmetic number, because the mean of its divisors is an integer number (2567817133560).

Almost surely, 242881027121272 is an apocalyptic number.

It is an amenable number.

42881027121272 is a deficient number, since it is larger than the sum of its proper divisors (39289121152648).

42881027121272 is a wasteful number, since it uses less digits than its factorization.

42881027121272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79921091 (or 79921087 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 47.

The spelling of 42881027121272 in words is "forty-two trillion, eight hundred eighty-one billion, twenty-seven million, one hundred twenty-one thousand, two hundred seventy-two".

Divisors: 1 2 4 8 47 94 188 376 1427 2854 5708 11416 67069 134138 268276 536552 79919611 159839222 319678444 639356888 3756221717 7512443434 15024886868 30049773736 114045284897 228090569794 456181139588 912362279176 5360128390159 10720256780318 21440513560636 42881027121272