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70055552 = 277411907
BaseRepresentation
bin1000010110011…
…11011010000000
311212211012011002
410023033122000
5120413234202
610541311132
71510314410
oct413173200
9155735132
1070055552
11365a9856
121b5654a8
131168abb8
149438640
15623c302
hex42cf680

70055552 has 64 divisors (see below), whose sum is σ = 163477440. Its totient is φ = 29276160.

The previous prime is 70055537. The next prime is 70055563. The reversal of 70055552 is 25555007.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35783 + ... + 37689.

It is an arithmetic number, because the mean of its divisors is an integer number (2554335).

Almost surely, 270055552 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 70055552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81738720).

70055552 is an abundant number, since it is smaller than the sum of its proper divisors (93421888).

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

70055552 is a wasteful number, since it uses less digits than its factorization.

70055552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 8750, while the sum is 29.

The square root of 70055552 is about 8369.9194739257. The cubic root of 70055552 is about 412.2375228875.

It can be divided in two parts, 70055 and 552, that added together give a palindrome (70607).

The spelling of 70055552 in words is "seventy million, fifty-five thousand, five hundred fifty-two".

Divisors: 1 2 4 7 8 14 16 28 32 41 56 64 82 112 128 164 224 287 328 448 574 656 896 1148 1312 1907 2296 2624 3814 4592 5248 7628 9184 13349 15256 18368 26698 30512 36736 53396 61024 78187 106792 122048 156374 213584 244096 312748 427168 547309 625496 854336 1094618 1250992 1708672 2189236 2501984 4378472 5003968 8756944 10007936 17513888 35027776 70055552