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3125270920 = 235411905653
BaseRepresentation
bin1011101001000111…
…1101100110001000
322001210202012201211
42322101331212020
522400032132140
61234041222504
7140306236012
oct27221754610
98053665654
103125270920
111364152332
12732791a34
133aa635645
142190d51b2
1513458b2ea
hexba47d988

3125270920 has 32 divisors (see below), whose sum is σ = 7203372120. Its totient is φ = 1219617280.

The previous prime is 3125270903. The next prime is 3125270923. The reversal of 3125270920 is 290725213.

3125270920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 897242116 + 2228028804 = 29954^2 + 47202^2 .

It is not an unprimeable number, because it can be changed into a prime (3125270923) 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, 951187 + ... + 954466.

Almost surely, 23125270920 is an apocalyptic number.

It is an amenable number.

3125270920 is an abundant number, since it is smaller than the sum of its proper divisors (4078101200).

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

3125270920 is a wasteful number, since it uses less digits than its factorization.

3125270920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905705 (or 1905701 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 3125270920 is about 55904.1225671238. The cubic root of 3125270920 is about 1462.0511172128.

The spelling of 3125270920 in words is "three billion, one hundred twenty-five million, two hundred seventy thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 1905653 3811306 7622612 9528265 15245224 19056530 38113060 76226120 78131773 156263546 312527092 390658865 625054184 781317730 1562635460 3125270920