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207157431024654 = 231141557137441387
BaseRepresentation
bin101111000110100010011001…
…000101101011110000001110
31000011111001112112211201021120
4233012202121011223300032
5204123031404320242104
62012330450544141410
761430426154234135
oct5706423105536016
91004431475751246
10207157431024654
1160008a78259630
121b2985b8607866
138b78b28854666
14392268a4c691c
1518e3990927cd9
hexbc689916bc0e

207157431024654 has 64 divisors (see below), whose sum is σ = 463834997160192. Its totient is φ = 61133928492800.

The previous prime is 207157431024647. The next prime is 207157431024679. The reversal of 207157431024654 is 456420134751702.

It is a junction number, because it is equal to n+sod(n) for n = 207157431024597 and 207157431024606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67213452 + ... + 70227935.

It is an arithmetic number, because the mean of its divisors is an integer number (7247421830628).

Almost surely, 2207157431024654 is an apocalyptic number.

207157431024654 is an abundant number, since it is smaller than the sum of its proper divisors (256677566135538).

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

207157431024654 is a wasteful number, since it uses less digits than its factorization.

207157431024654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137442001.

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 207157431024654 in words is "two hundred seven trillion, one hundred fifty-seven billion, four hundred thirty-one million, twenty-four thousand, six hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 41 66 82 123 246 451 557 902 1114 1353 1671 2706 3342 6127 12254 18381 22837 36762 45674 68511 137022 251207 502414 753621 1507242 137441387 274882774 412324161 824648322 1511855257 3023710514 4535565771 5635096867 9071131542 11270193734 16905290601 33810581202 61986065537 76554852559 123972131074 153109705118 185958196611 229664557677 371916393222 459329115354 842103378149 1684206756298 2526310134447 3138748954919 5052620268894 6277497909838 9416246864757 18832493729514 34526238504109 69052477008218 103578715512327 207157431024654