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168835172052 = 22353379700433
BaseRepresentation
bin1001110100111101011…
…1000100011011010100
3121010210102011101120110
42131033113010123110
510231233301001202
6205321203403020
715124615166211
oct2351727043324
9533712141513
10168835172052
116566a064748
122887a683470
1312bc8828a91
1482590a0b08
1545d245b26c
hex274f5c46d4

168835172052 has 48 divisors (see below), whose sum is σ = 402441359040. Its totient is φ = 55070765568.

The previous prime is 168835172039. The next prime is 168835172069. The reversal of 168835172052 is 250271538861.

It is a junction number, because it is equal to n+sod(n) for n = 168835171992 and 168835172010.

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, 109173 + ... + 591260.

It is an arithmetic number, because the mean of its divisors is an integer number (8384194980).

Almost surely, 2168835172052 is an apocalyptic number.

168835172052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168835172052 is an abundant number, since it is smaller than the sum of its proper divisors (233606186988).

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

168835172052 is a wasteful number, since it uses less digits than its factorization.

168835172052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700872 (or 700870 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 168835172052 in words is "one hundred sixty-eight billion, eight hundred thirty-five million, one hundred seventy-two thousand, fifty-two".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 379 636 758 1137 1516 2274 4548 20087 40174 60261 80348 120522 241044 700433 1400866 2101299 2801732 4202598 8405196 37122949 74245898 111368847 148491796 222737694 265464107 445475388 530928214 796392321 1061856428 1592784642 3185569284 14069597671 28139195342 42208793013 56278390684 84417586026 168835172052