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31470744152 = 23231491147897
BaseRepresentation
bin11101010011110011…
…010111001001011000
310000020020202110001202
4131103303113021120
51003423002303102
622242451133332
72162605624451
oct352363271130
9100206673052
1031470744152
111238a461971
1261235a4248
132c76cb3003
1417478d4128
15c42ce4e02
hex753cd7258

31470744152 has 32 divisors (see below), whose sum is σ = 61986492000. Its totient is φ = 14950197504.

The previous prime is 31470744143. The next prime is 31470744191. The reversal of 31470744152 is 25144707413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546533 + ... + 601364.

It is an arithmetic number, because the mean of its divisors is an integer number (1937077875).

Almost surely, 231470744152 is an apocalyptic number.

It is an amenable number.

31470744152 is a deficient number, since it is larger than the sum of its proper divisors (30515747848).

31470744152 is a wasteful number, since it uses less digits than its factorization.

31470744152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148075 (or 1148071 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 31470744152 in words is "thirty-one billion, four hundred seventy million, seven hundred forty-four thousand, one hundred fifty-two".

Divisors: 1 2 4 8 23 46 92 149 184 298 596 1192 3427 6854 13708 27416 1147897 2295794 4591588 9183176 26401631 52803262 105606524 171036653 211213048 342073306 684146612 1368293224 3933843019 7867686038 15735372076 31470744152