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70290903940 = 225191315914057
BaseRepresentation
bin100000101110110101…
…0100001001110000100
320201102200201220001121
41001131222201032010
52122423432411230
652142522003324
75035605553045
oct1013552411604
9221380656047
1070290903940
11278a0423554
1211758346544
1368227ac16a
14358b4dc8cc
151c65e2477a
hex105daa1384

70290903940 has 48 divisors (see below), whose sum is σ = 155402755200. Its totient is φ = 26632634112.

The previous prime is 70290903929. The next prime is 70290903941. The reversal of 70290903940 is 4930909207.

It is a super-2 number, since 2×702909039402 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70290903941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4993392 + ... + 5007448.

It is an arithmetic number, because the mean of its divisors is an integer number (3237557400).

Almost surely, 270290903940 is an apocalyptic number.

It is an amenable number.

70290903940 is an abundant number, since it is smaller than the sum of its proper divisors (85111851260).

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

70290903940 is a wasteful number, since it uses less digits than its factorization.

70290903940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27244 (or 27242 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 70290903940 in words is "seventy billion, two hundred ninety million, nine hundred three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 13159 14057 26318 28114 52636 56228 65795 70285 131590 140570 250021 263180 267083 281140 500042 534166 1000084 1068332 1250105 1335415 2500210 2670830 5000420 5341660 184976063 369952126 739904252 924880315 1849760630 3514545197 3699521260 7029090394 14058180788 17572725985 35145451970 70290903940