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70202293218 = 23122572
BaseRepresentation
bin100000101100001100…
…0011111101111100010
320201012112000000000000
41001120120133233202
52122233241340333
652130034440430
75033451434541
oct1013030375742
9221175000000
1070202293218
1127855400a52
1211732733116
13680a325695
14357d834158
151c5d26e713
hex105861fbe2

70202293218 has 78 divisors (see below), whose sum is σ = 158572063281. Its totient is φ = 23309710848.

The previous prime is 70202293201. The next prime is 70202293261. The reversal of 70202293218 is 81239220207.

It can be written as a sum of positive squares in 2 ways, for example, as 43774263729 + 26428029489 = 209223^2 + 162567^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=187353.

It is an unprimeable number.

It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 273160546 + ... + 273160802.

Almost surely, 270202293218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70202293218

70202293218 is an abundant number, since it is smaller than the sum of its proper divisors (88369770063).

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

70202293218 is an frugal number, since it uses more digits than its factorization.

70202293218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 70202293218 in words is "seventy billion, two hundred two million, two hundred ninety-three thousand, two hundred eighteen".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 257 486 514 729 771 1458 1542 2187 2313 4374 4626 6561 6939 13122 13878 19683 20817 39366 41634 59049 62451 66049 118098 124902 132098 177147 187353 198147 354294 374706 396294 531441 562059 594441 1062882 1124118 1188882 1686177 1783323 3372354 3566646 5058531 5349969 10117062 10699938 15175593 16049907 30351186 32099814 45526779 48149721 91053558 96299442 136580337 144449163 273160674 288898326 433347489 866694978 1300042467 2600084934 3900127401 7800254802 11700382203 23400764406 35101146609 70202293218