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70053428 = 22317173109
BaseRepresentation
bin1000010110011…
…10111000110100
311212211002020102
410023032320310
5120413202203
610541253232
71510305254
oct413167064
9155732212
1070053428
11365a81a5
121b564218
1311689c43
149437964
15623b888
hex42cee34

70053428 has 48 divisors (see below), whose sum is σ = 131281920. Its totient is φ = 32659200.

The previous prime is 70053427. The next prime is 70053449. The reversal of 70053428 is 82435007.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 70053428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70053421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642638 + ... + 642746.

It is an arithmetic number, because the mean of its divisors is an integer number (2735040).

Almost surely, 270053428 is an apocalyptic number.

It is an amenable number.

70053428 is a deficient number, since it is larger than the sum of its proper divisors (61228492).

70053428 is a wasteful number, since it uses less digits than its factorization.

70053428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 70053428 is about 8369.7925900228. The cubic root of 70053428 is about 412.2333566636.

The spelling of 70053428 in words is "seventy million, fifty-three thousand, four hundred twenty-eight".

Divisors: 1 2 4 31 62 71 73 109 124 142 146 218 284 292 436 2201 2263 3379 4402 4526 5183 6758 7739 7957 8804 9052 10366 13516 15478 15914 20732 30956 31828 160673 239909 246667 321346 479818 493334 564947 642692 959636 986668 1129894 2259788 17513357 35026714 70053428