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28232931074 = 2233421143909
BaseRepresentation
bin11010010010110100…
…000101011100000010
32200212121020111111212
4122102310011130002
5430310112243244
620545305410122
72016431645255
oct322264053402
980777214455
1028232931074
1110a78831a97
12557b199942
13287c26519a
14151b8a509c
15b03927d9e
hex692d05702

28232931074 has 16 divisors (see below), whose sum is σ = 42632474040. Its totient is φ = 14022395520.

The previous prime is 28232931059. The next prime is 28232931187. The reversal of 28232931074 is 47013923282.

It can be written as a sum of positive squares in 4 ways, for example, as 8098740049 + 20134191025 = 89993^2 + 141895^2 .

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, 124232 + ... + 268140.

Almost surely, 228232931074 is an apocalyptic number.

28232931074 is a deficient number, since it is larger than the sum of its proper divisors (14399542966).

28232931074 is a wasteful number, since it uses less digits than its factorization.

28232931074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144565.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 28232931074 in words is "twenty-eight billion, two hundred thirty-two million, nine hundred thirty-one thousand, seventy-four".

Divisors: 1 2 233 421 466 842 98093 143909 196186 287818 33530797 60585689 67061594 121171378 14116465537 28232931074