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75170142388 = 221130713194219
BaseRepresentation
bin100011000000001111…
…1010101100010110100
321012000201212212220201
41012000133111202310
52212422024024023
654311021010244
75300533445035
oct1060037254264
9235021785821
1075170142388
1129974649620
121269a3b3984
13711c6082c3
1438d1526a8c
151e4e474bad
hex11807d58b4

75170142388 has 48 divisors (see below), whose sum is σ = 144117388800. Its totient is φ = 34023062880.

The previous prime is 75170142367. The next prime is 75170142401. The reversal of 75170142388 is 88324107157.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17814943 + ... + 17819161.

It is an arithmetic number, because the mean of its divisors is an integer number (3002445600).

Almost surely, 275170142388 is an apocalyptic number.

It is an amenable number.

75170142388 is a deficient number, since it is larger than the sum of its proper divisors (68947246412).

75170142388 is a wasteful number, since it uses less digits than its factorization.

75170142388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860 (or 5858 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 75170142388 in words is "seventy-five billion, one hundred seventy million, one hundred forty-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 11 22 44 307 614 1228 1319 2638 3377 4219 5276 6754 8438 13508 14509 16876 29018 46409 58036 92818 185636 404933 809866 1295233 1619732 2590466 4454263 5180932 5564861 8908526 11129722 14247563 17817052 22259444 28495126 56990252 61213471 122426942 244853884 1708412327 3416824654 6833649308 18792535597 37585071194 75170142388