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37830225285 = 3351621172871
BaseRepresentation
bin100011001110110110…
…110110110110000101
310121122110020120011000
4203032312312312011
51104434014202120
625213505003513
72506316415666
oct431666666605
9117573216130
1037830225285
11150531a31a6
1273b9323599
13374b6a45b8
141b8c35b36d
15eb628a990
hex8cedb6d85

37830225285 has 32 divisors (see below), whose sum is σ = 67295612160. Its totient is φ = 20163556800.

The previous prime is 37830225263. The next prime is 37830225299. The reversal of 37830225285 is 58252203873.

37830225285 is a `hidden beast` number, since 3 + 78 + 30 + 22 + 528 + 5 = 666.

It is not a de Polignac number, because 37830225285 - 218 = 37829963141 is a prime.

It is a super-2 number, since 2×378302252852 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 37830225285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132400 + ... + 305270.

It is an arithmetic number, because the mean of its divisors is an integer number (2102987880).

Almost surely, 237830225285 is an apocalyptic number.

It is an amenable number.

37830225285 is a deficient number, since it is larger than the sum of its proper divisors (29465386875).

37830225285 is a wasteful number, since it uses less digits than its factorization.

37830225285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174506 (or 174500 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 37830225285 in words is "thirty-seven billion, eight hundred thirty million, two hundred twenty-five thousand, two hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 135 1621 4863 8105 14589 24315 43767 72945 172871 218835 518613 864355 1555839 2593065 4667517 7779195 23337585 280223891 840671673 1401119455 2522015019 4203358365 7566045057 12610075095 37830225285