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168116650325 = 52131755754629
BaseRepresentation
bin1001110010010010001…
…0001000000101010101
3121001221100010201001122
42130210202020011111
510223300330302300
6205122015133325
715101041643531
oct2344442100525
9531840121048
10168116650325
1165330514738
12286b9b14245
1312b12a030b0
1481cb8a4bc1
15458e32ac85
hex2724888155

168116650325 has 48 divisors (see below), whose sum is σ = 238137414480. Its totient is φ = 116632965120.

The previous prime is 168116650319. The next prime is 168116650399. The reversal of 168116650325 is 523056611861.

It can be written as a sum of positive squares in 24 ways, for example, as 137339912836 + 30776737489 = 370594^2 + 175433^2 .

It is not a de Polignac number, because 168116650325 - 220 = 168115601749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3050111 + ... + 3104739.

It is an arithmetic number, because the mean of its divisors is an integer number (4961196135).

Almost surely, 2168116650325 is an apocalyptic number.

It is an amenable number.

168116650325 is a deficient number, since it is larger than the sum of its proper divisors (70020764155).

168116650325 is a wasteful number, since it uses less digits than its factorization.

168116650325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55226 (or 55221 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 168116650325 in words is "one hundred sixty-eight billion, one hundred sixteen million, six hundred fifty thousand, three hundred twenty-five".

Divisors: 1 5 13 17 25 65 85 221 325 425 557 1105 2785 5525 7241 9469 13925 36205 47345 54629 123097 181025 236725 273145 615485 710177 928693 1365725 3077425 3550885 4643465 12073009 17754425 23217325 30428353 60365045 152141765 301825225 395568589 517282001 760708825 1977842945 2586410005 6724666013 9889214725 12932050025 33623330065 168116650325