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164730201856 = 2811193078839
BaseRepresentation
bin1001100101101010101…
…1110110011100000000
3120202012022221022002021
42121122223312130000
510144331412424411
6203402003531224
714621111420113
oct2313253663400
9522168838067
10164730201856
11639529a48a0
1227b13989b14
13126c324352c
147d89c2457a
154441d9da71
hex265aaf6700

164730201856 has 72 divisors (see below), whose sum is σ = 377588937600. Its totient is φ = 70936427520.

The previous prime is 164730201851. The next prime is 164730201869. The reversal of 164730201856 is 658102037461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164730201851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485916 + ... + 1592923.

It is an arithmetic number, because the mean of its divisors is an integer number (5244290800).

Almost surely, 2164730201856 is an apocalyptic number.

164730201856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164730201856 is an abundant number, since it is smaller than the sum of its proper divisors (212858735744).

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

164730201856 is a wasteful number, since it uses less digits than its factorization.

164730201856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078885 (or 3078871 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 164730201856 in words is "one hundred sixty-four billion, seven hundred thirty million, two hundred one thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 11 16 19 22 32 38 44 64 76 88 128 152 176 209 256 304 352 418 608 704 836 1216 1408 1672 2432 2816 3344 4864 6688 13376 26752 53504 3078839 6157678 12315356 24630712 33867229 49261424 58497941 67734458 98522848 116995882 135468916 197045696 233991764 270937832 394091392 467983528 541875664 643477351 788182784 935967056 1083751328 1286954702 1871934112 2167502656 2573909404 3743868224 4335005312 5147818808 7487736448 8670010624 10295637616 14975472896 20591275232 41182550464 82365100928 164730201856