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165314656 = 2513401991
BaseRepresentation
bin10011101101010…
…00000001100000
3102112001212002001
421312220001200
5314310032111
624223133344
74045102633
oct1166500140
9375055061
10165314656
1185352391
1247444254
1328331830
1417d53c1a
15e7a71c1
hex9da8060

165314656 has 48 divisors (see below), whose sum is σ = 351727488. Its totient is φ = 76032000.

The previous prime is 165314603. The next prime is 165314663. The reversal of 165314656 is 656413561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166321 + ... + 167311.

It is an arithmetic number, because the mean of its divisors is an integer number (7327656).

Almost surely, 2165314656 is an apocalyptic number.

165314656 is a gapful number since it is divisible by the number (16) 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 165314656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175863744).

165314656 is an abundant number, since it is smaller than the sum of its proper divisors (186412832).

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

165314656 is a wasteful number, since it uses less digits than its factorization.

165314656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1407 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 165314656 is about 12857.4747131775. The cubic root of 165314656 is about 548.8290858285.

It can be divided in two parts, 165 and 314656, that added together give a triangular number (314821 = T793).

The spelling of 165314656 in words is "one hundred sixty-five million, three hundred fourteen thousand, six hundred fifty-six".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 401 416 802 991 1604 1982 3208 3964 5213 6416 7928 10426 12832 12883 15856 20852 25766 31712 41704 51532 83408 103064 166816 206128 397391 412256 794782 1589564 3179128 5166083 6358256 10332166 12716512 20664332 41328664 82657328 165314656