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70247763 = 3316132
BaseRepresentation
bin1000010111111…
…10010101010011
311220011221211000
410023332111103
5120440412023
610545353043
71512044655
oct413762523
9156157730
1070247763
1136720203
121b638783
1311727531
1494886d5
156279243
hex42fe553

70247763 has 12 divisors (see below), whose sum is σ = 104135320. Its totient is φ = 46802808.

The previous prime is 70247761. The next prime is 70247777. The reversal of 70247763 is 36774207.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 70247763 - 21 = 70247761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70247761) 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, 42745 + ... + 44357.

Almost surely, 270247763 is an apocalyptic number.

70247763 is a deficient number, since it is larger than the sum of its proper divisors (33887557).

70247763 is an frugal number, since it uses more digits than its factorization.

70247763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 70247763 is about 8381.3938578258. The cubic root of 70247763 is about 412.6141964821.

The spelling of 70247763 in words is "seventy million, two hundred forty-seven thousand, seven hundred sixty-three".

Divisors: 1 3 9 27 1613 4839 14517 43551 2601769 7805307 23415921 70247763