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168112445277 = 3739720164621
BaseRepresentation
bin1001110010010001001…
…0000101011101011101
3121001221001020001211010
42130210102011131131
510223243241222102
6205121345045433
715100661131110
oct2344422053535
9531831201733
10168112445277
1165329102397
12286b8626879
1312b11b900ba
1481cb0cc577
15458dc99d6c
hex272448575d

168112445277 has 16 divisors (see below), whose sum is σ = 256816625792. Its totient is φ = 95822274240.

The previous prime is 168112445269. The next prime is 168112445309. The reversal of 168112445277 is 772544211861.

It is not a de Polignac number, because 168112445277 - 23 = 168112445269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168112445077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10073974 + ... + 10090647.

It is an arithmetic number, because the mean of its divisors is an integer number (16051039112).

Almost surely, 2168112445277 is an apocalyptic number.

It is an amenable number.

168112445277 is a deficient number, since it is larger than the sum of its proper divisors (88704180515).

168112445277 is a wasteful number, since it uses less digits than its factorization.

168112445277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20165028.

The product of its digits is 752640, while the sum is 48.

The spelling of 168112445277 in words is "one hundred sixty-eight billion, one hundred twelve million, four hundred forty-five thousand, two hundred seventy-seven".

Divisors: 1 3 7 21 397 1191 2779 8337 20164621 60493863 141152347 423457041 8005354537 24016063611 56037481759 168112445277