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70880973 = 31731107419
BaseRepresentation
bin1000011100110…
…00111011001101
311221101010102020
410032120323031
5121121142343
611011120353
71520323032
oct416307315
9157333366
1070880973
1137012a19
121b8a30b9
13118b9807
1495b1389
156351b83
hex4398ecd

70880973 has 32 divisors (see below), whose sum is σ = 104509440. Its totient is φ = 42535680.

The previous prime is 70880969. The next prime is 70881049. The reversal of 70880973 is 37908807.

It is not a de Polignac number, because 70880973 - 22 = 70880969 is a prime.

It is a super-2 number, since 2×708809732 = 10048224666853458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70810973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168958 + ... + 169376.

It is an arithmetic number, because the mean of its divisors is an integer number (3265920).

Almost surely, 270880973 is an apocalyptic number.

It is an amenable number.

70880973 is a deficient number, since it is larger than the sum of its proper divisors (33628467).

70880973 is a wasteful number, since it uses less digits than its factorization.

70880973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 70880973 is about 8419.0838575227. The cubic root of 70880973 is about 413.8502515656.

The spelling of 70880973 in words is "seventy million, eight hundred eighty thousand, nine hundred seventy-three".

Divisors: 1 3 17 31 51 93 107 321 419 527 1257 1581 1819 3317 5457 7123 9951 12989 21369 38967 44833 56389 134499 169167 220813 662439 762161 1389823 2286483 4169469 23626991 70880973