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70637945284 = 2217278172
BaseRepresentation
bin100000111001001011…
…0011000000111000100
320202022212202102021201
41001302112120013010
52124131303222114
652241200152244
75050321425304
oct1016226300704
9222285672251
1070637945284
1127a59307885
1211834608684
13687966a77a
1435c1639604
151c86626874
hex10725981c4

70637945284 has 27 divisors (see below), whose sum is σ = 131332496743. Its totient is φ = 33237133568.

The previous prime is 70637945249. The next prime is 70637945303. The reversal of 70637945284 is 48254973607.

The square root of 70637945284 is 265778.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 12922687684 + 57715257600 = 113678^2 + 240240^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9032544 + ... + 9040360.

Almost surely, 270637945284 is an apocalyptic number.

70637945284 is the 265778-th square number.

It is an amenable number.

70637945284 is a deficient number, since it is larger than the sum of its proper divisors (60694551459).

70637945284 is an frugal number, since it uses more digits than its factorization.

70637945284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15672 (or 7836 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 70637945284 in words is "seventy billion, six hundred thirty-seven million, nine hundred forty-five thousand, two hundred eighty-four".

Divisors: 1 2 4 17 34 68 289 578 1156 7817 15634 31268 132889 265778 531556 2259113 4518226 9036452 61105489 122210978 244421956 1038793313 2077586626 4155173252 17659486321 35318972642 70637945284