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70680589 = 721931279
BaseRepresentation
bin1000011011010…
…00000000001101
311220222221112121
410031220000031
5121043234324
611002532541
71515526600
oct415500015
9156887477
1070680589
1136996411
121b807151
1311849545
14955c337
1563125e4
hex436800d

70680589 has 36 divisors (see below), whose sum is σ = 90561600. Its totient is φ = 54840240.

The previous prime is 70680583. The next prime is 70680593. The reversal of 70680589 is 98508607.

It is a happy number.

It is not a de Polignac number, because 70680589 - 23 = 70680581 is a prime.

It is a super-2 number, since 2×706805892 = 9991491322773842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70680581) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 894652 + ... + 894730.

It is an arithmetic number, because the mean of its divisors is an integer number (2515600).

Almost surely, 270680589 is an apocalyptic number.

70680589 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

70680589 is a deficient number, since it is larger than the sum of its proper divisors (19881011).

70680589 is a wasteful number, since it uses less digits than its factorization.

70680589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 70680589 is about 8407.1748524698. The cubic root of 70680589 is about 413.4598918007.

The spelling of 70680589 in words is "seventy million, six hundred eighty thousand, five hundred eighty-nine".

Divisors: 1 7 19 31 49 79 133 217 553 589 931 961 1501 1519 2449 3871 4123 6727 10507 17143 18259 28861 46531 47089 73549 75919 120001 127813 325717 531433 894691 1442461 2280019 3720031 10097227 70680589