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28734355074 = 23173227121949
BaseRepresentation
bin11010110000101100…
…110111011010000010
32202011112202110221010
4122300230313122002
5432321443330244
621111140541350
72035030662645
oct326054673202
982145673833
1028734355074
1111205881297
12569b0b1856
13292c0c8489
14156830ba5c
15b32972eb9
hex6b0b37682

28734355074 has 32 divisors (see below), whose sum is σ = 58056004800. Its totient is φ = 9480725312.

The previous prime is 28734355033. The next prime is 28734355127. The reversal of 28734355074 is 47055343782.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 174652 + ... + 296600.

It is an arithmetic number, because the mean of its divisors is an integer number (1814250150).

Almost surely, 228734355074 is an apocalyptic number.

28734355074 is an abundant number, since it is smaller than the sum of its proper divisors (29321649726).

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

28734355074 is a wasteful number, since it uses less digits than its factorization.

28734355074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122354.

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 28734355074 in words is "twenty-eight billion, seven hundred thirty-four million, three hundred fifty-five thousand, seventy-four".

Divisors: 1 2 3 6 173 227 346 454 519 681 1038 1362 39271 78542 117813 121949 235626 243898 365847 731694 21097177 27682423 42194354 55364846 63291531 83047269 126583062 166094538 4789059179 9578118358 14367177537 28734355074