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162992144 = 24771103199
BaseRepresentation
bin10011011011100…
…01000000010000
3102100200212012002
421231301000100
5313211222034
624101253132
74016260520
oct1155610020
9370625162
10162992144
1184006457
12467041a8
13279ca673
141790b680
15e498e7e
hex9b71010

162992144 has 80 divisors (see below), whose sum is σ = 371404800. Its totient is φ = 67858560.

The previous prime is 162992131. The next prime is 162992147. The reversal of 162992144 is 441299261.

It is a junction number, because it is equal to n+sod(n) for n = 162992098 and 162992107.

It is not an unprimeable number, because it can be changed into a prime (162992147) 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, 818957 + ... + 819155.

It is an arithmetic number, because the mean of its divisors is an integer number (4642560).

Almost surely, 2162992144 is an apocalyptic number.

162992144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162992144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185702400).

162992144 is an abundant number, since it is smaller than the sum of its proper divisors (208412656).

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

162992144 is a wasteful number, since it uses less digits than its factorization.

162992144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 382 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 162992144 is about 12766.8376663918. The cubic root of 162992144 is about 546.2467811514.

The spelling of 162992144 in words is "one hundred sixty-two million, nine hundred ninety-two thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 56 71 103 112 142 199 206 284 398 412 497 568 721 796 824 994 1136 1393 1442 1592 1648 1988 2786 2884 3184 3976 5572 5768 7313 7952 11144 11536 14129 14626 20497 22288 28258 29252 40994 51191 56516 58504 81988 98903 102382 113032 117008 143479 163976 197806 204764 226064 286958 327952 395612 409528 573916 791224 819056 1147832 1455287 1582448 2295664 2910574 5821148 10187009 11642296 20374018 23284592 40748036 81496072 162992144