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75107308890 = 2356074124509
BaseRepresentation
bin100010111110010111…
…1101001010101011010
321011212100122121120010
41011330233221111122
52212304432341030
654300454142350
75266141410015
oct1057457512532
9234770577503
1075107308890
1129942132909
12126813519b6
13710c5a8713
1438c704c37c
151e48bb26b0
hex117cbe955a

75107308890 has 32 divisors (see below), whose sum is σ = 180554549760. Its totient is φ = 19995614784.

The previous prime is 75107308889. The next prime is 75107308943. The reversal of 75107308890 is 9880370157.

It is a super-2 number, since 2×751073088902 (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2044045 + ... + 2080464.

It is an arithmetic number, because the mean of its divisors is an integer number (5642329680).

Almost surely, 275107308890 is an apocalyptic number.

75107308890 is an abundant number, since it is smaller than the sum of its proper divisors (105447240870).

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

75107308890 is a wasteful number, since it uses less digits than its factorization.

75107308890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125126.

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 75107308890 in words is "seventy-five billion, one hundred seven million, three hundred eight thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 607 1214 1821 3035 3642 6070 9105 18210 4124509 8249018 12373527 20622545 24747054 41245090 61867635 123735270 2503576963 5007153926 7510730889 12517884815 15021461778 25035769630 37553654445 75107308890