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68979232 = 2572931051
BaseRepresentation
bin1000001110010…
…00101000100000
311210210111201101
410013020220200
5120124313412
610502244144
71465212430
oct407105040
9153714641
1068979232
1135a34133
121b126654
13113a201a
1492382c0
1560c8457
hex41c8a20

68979232 has 48 divisors (see below), whose sum is σ = 155881152. Its totient is φ = 29433600.

The previous prime is 68979223. The next prime is 68979241. The reversal of 68979232 is 23297986.

It is an interprime number because it is at equal distance from previous prime (68979223) and next prime (68979241).

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, 65107 + ... + 66157.

It is an arithmetic number, because the mean of its divisors is an integer number (3247524).

Almost surely, 268979232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68979232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77940576).

68979232 is an abundant number, since it is smaller than the sum of its proper divisors (86901920).

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

68979232 is a wasteful number, since it uses less digits than its factorization.

68979232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361 (or 1353 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 68979232 is about 8305.3736821410. The cubic root of 68979232 is about 410.1154384443.

It can be divided in two parts, 6897 and 9232, that added together give a square (16129 = 1272).

The spelling of 68979232 in words is "sixty-eight million, nine hundred seventy-nine thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 293 586 1051 1172 2051 2102 2344 4102 4204 4688 7357 8204 8408 9376 14714 16408 16816 29428 32816 33632 58856 65632 117712 235424 307943 615886 1231772 2155601 2463544 4311202 4927088 8622404 9854176 17244808 34489616 68979232