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70236628 = 22711220731
BaseRepresentation
bin1000010111110…
…11100111010100
311220011101112121
410023323213110
5120440033003
610545225324
71512000340
oct413734724
9156141477
1070236628
1136712900
121b632244
1311722447
149484620
156275cbd
hex42fb9d4

70236628 has 36 divisors (see below), whose sum is σ = 154411936. Its totient is φ = 27363600.

The previous prime is 70236623. The next prime is 70236629. The reversal of 70236628 is 82663207.

It is a junction number, because it is equal to n+sod(n) for n = 70236593 and 70236602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70236623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6978 + ... + 13753.

Almost surely, 270236628 is an apocalyptic number.

It is an amenable number.

70236628 is an abundant number, since it is smaller than the sum of its proper divisors (84175308).

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

70236628 is a wasteful number, since it uses less digits than its factorization.

70236628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20764 (or 20751 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 70236628 is about 8380.7295625142. The cubic root of 70236628 is about 412.5923941183.

The spelling of 70236628 in words is "seventy million, two hundred thirty-six thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 121 154 242 308 484 847 1694 3388 20731 41462 82924 145117 228041 290234 456082 580468 912164 1596287 2508451 3192574 5016902 6385148 10033804 17559157 35118314 70236628