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70402372 = 221719291879
BaseRepresentation
bin1000011001001…
…00000101000100
311220110210220021
410030210011010
5121010333442
610552544524
71513260505
oct414440504
9156423807
1070402372
1136816387
121b6b2144
131177ca11
1494c8bac
1562a9e67
hex4324144

70402372 has 48 divisors (see below), whose sum is σ = 142128000. Its totient is φ = 30288384.

The previous prime is 70402369. The next prime is 70402373. The reversal of 70402372 is 27320407.

70402372 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

70402372 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (70402373) 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, 36529 + ... + 38407.

It is an arithmetic number, because the mean of its divisors is an integer number (2961000).

Almost surely, 270402372 is an apocalyptic number.

It is an amenable number.

70402372 is an abundant number, since it is smaller than the sum of its proper divisors (71725628).

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

70402372 is a wasteful number, since it uses less digits than its factorization.

70402372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 70402372 is about 8390.6121349994. The cubic root of 70402372 is about 412.9166835707.

Adding to 70402372 its reverse (27320407), we get a palindrome (97722779).

The spelling of 70402372 in words is "seventy million, four hundred two thousand, three hundred seventy-two".

Divisors: 1 2 4 17 19 29 34 38 58 68 76 116 323 493 551 646 986 1102 1292 1879 1972 2204 3758 7516 9367 18734 31943 35701 37468 54491 63886 71402 108982 127772 142804 217964 606917 926347 1035329 1213834 1852694 2070658 2427668 3705388 4141316 17600593 35201186 70402372