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70448805 = 3357127587
BaseRepresentation
bin1000011001011…
…11011010100101
311220120011121000
410030233122211
5121013330210
610553543513
71513543050
oct414573245
9156504530
1070448805
1136848259
121b714b99
1311797bab
1494dba97
1562b8ac0
hex432f6a5

70448805 has 64 divisors (see below), whose sum is σ = 144506880. Its totient is φ = 31897152.

The previous prime is 70448779. The next prime is 70448821. The reversal of 70448805 is 50884407.

It is not a de Polignac number, because 70448805 - 211 = 70446757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70448805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119722 + ... + 120308.

It is an arithmetic number, because the mean of its divisors is an integer number (2257920).

Almost surely, 270448805 is an apocalyptic number.

It is an amenable number.

70448805 is an abundant number, since it is smaller than the sum of its proper divisors (74058075).

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

70448805 is a wasteful number, since it uses less digits than its factorization.

70448805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 70448805 is about 8393.3786403331. The cubic root of 70448805 is about 413.0074416246.

It can be divided in two parts, 70448 and 805, that added together give a triangular number (71253 = T377).

The spelling of 70448805 in words is "seventy million, four hundred forty-eight thousand, eight hundred five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 127 135 189 315 381 587 635 889 945 1143 1761 1905 2667 2935 3429 4109 4445 5283 5715 8001 8805 12327 13335 15849 17145 20545 24003 26415 36981 40005 61635 74549 79245 110943 120015 184905 223647 372745 521843 554715 670941 1118235 1565529 2012823 2609215 3354705 4696587 7827645 10064115 14089761 23482935 70448805