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70684068 = 22373131321
BaseRepresentation
bin1000011011010…
…00110110100100
311221000010022110
410031220312210
5121043342233
611003001020
71515543000
oct415506644
9157003273
1070684068
1136998a94
121b809170
131184acc0
14955d700
156313663
hex4368da4

70684068 has 96 divisors (see below), whose sum is σ = 207289600. Its totient is φ = 18627840.

The previous prime is 70684051. The next prime is 70684109. The reversal of 70684068 is 86048607.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52848 + ... + 54168.

Almost surely, 270684068 is an apocalyptic number.

70684068 is a gapful number since it is divisible by the number (78) 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 70684068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103644800).

70684068 is an abundant number, since it is smaller than the sum of its proper divisors (136605532).

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

70684068 is a wasteful number, since it uses less digits than its factorization.

70684068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 70684068 is about 8407.3817565280. The cubic root of 70684068 is about 413.4666753857.

The spelling of 70684068 in words is "seventy million, six hundred eighty-four thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 49 52 78 84 91 98 147 156 182 196 273 294 343 364 546 588 637 686 1029 1092 1274 1321 1372 1911 2058 2548 2642 3822 3963 4116 4459 5284 7644 7926 8918 9247 13377 15852 17173 17836 18494 26754 27741 34346 36988 51519 53508 55482 64729 68692 103038 110964 120211 129458 194187 206076 240422 258916 360633 388374 453103 480844 721266 776748 841477 906206 1359309 1442532 1682954 1812412 2524431 2718618 3365908 5048862 5437236 5890339 10097724 11780678 17671017 23561356 35342034 70684068