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70641042 = 23291812243
BaseRepresentation
bin1000011010111…
…10010110010010
311220220221021220
410031132112102
5121041003132
611002025510
71515303363
oct415362622
9156827256
1070641042
113696972a
121b7a8296
1311834544
14954bb6a
156305a2c
hex435e592

70641042 has 32 divisors (see below), whose sum is σ = 147026880. Its totient is φ = 22599360.

The previous prime is 70641041. The next prime is 70641059. The reversal of 70641042 is 24014607.

It is not an unprimeable number, because it can be changed into a prime (70641041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30373 + ... + 32615.

It is an arithmetic number, because the mean of its divisors is an integer number (4594590).

Almost surely, 270641042 is an apocalyptic number.

70641042 is an abundant number, since it is smaller than the sum of its proper divisors (76385838).

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

70641042 is a wasteful number, since it uses less digits than its factorization.

70641042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 70641042 is about 8404.8225442302. The cubic root of 70641042 is about 413.3827647842.

Adding to 70641042 its reverse (24014607), we get a palindrome (94655649).

The spelling of 70641042 in words is "seventy million, six hundred forty-one thousand, forty-two".

Divisors: 1 2 3 6 29 58 87 174 181 362 543 1086 2243 4486 5249 6729 10498 13458 15747 31494 65047 130094 195141 390282 405983 811966 1217949 2435898 11773507 23547014 35320521 70641042