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70137277 = 721431373
BaseRepresentation
bin1000010111000…
…11010110111101
311212222100020221
410023203112331
5120423343102
610543141341
71511104600
oct413432675
9155870227
1070137277
11366551a1
121b5a4851
13116b9162
14945a337
156256637
hex42e35bd

70137277 has 6 divisors (see below), whose sum is σ = 81588318. Its totient is φ = 60117624.

The previous prime is 70137271. The next prime is 70137289. The reversal of 70137277 is 77273107.

It can be written as a sum of positive squares in only one way, i.e., 44876601 + 25260676 = 6699^2 + 5026^2 .

It is not a de Polignac number, because 70137277 - 27 = 70137149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70137271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715638 + ... + 715735.

It is an arithmetic number, because the mean of its divisors is an integer number (13598053).

Almost surely, 270137277 is an apocalyptic number.

It is an amenable number.

70137277 is a deficient number, since it is larger than the sum of its proper divisors (11451041).

70137277 is a wasteful number, since it uses less digits than its factorization.

70137277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431387 (or 1431380 counting only the distinct ones).

The product of its (nonzero) digits is 14406, while the sum is 34.

The square root of 70137277 is about 8374.8001170177. The cubic root of 70137277 is about 412.3977624802.

The spelling of 70137277 in words is "seventy million, one hundred thirty-seven thousand, two hundred seventy-seven".

Divisors: 1 7 49 1431373 10019611 70137277