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75145574380 = 2253757278719
BaseRepresentation
bin100010111111100000…
…1100111011111101100
321011222000122200221111
41011333001213133230
52212344231340010
654304342241404
75300114562142
oct1057701473754
9234860580844
1075145574380
1129961799288
1212692126264
1371174b5916
1438cc16d592
151e4c22058a
hex117f0677ec

75145574380 has 12 divisors (see below), whose sum is σ = 157805706240. Its totient is φ = 30058229744.

The previous prime is 75145574363. The next prime is 75145574429. The reversal of 75145574380 is 8347554157.

It is a super-2 number, since 2×751455743802 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1878639340 + ... + 1878639379.

It is an arithmetic number, because the mean of its divisors is an integer number (13150475520).

Almost surely, 275145574380 is an apocalyptic number.

It is an amenable number.

75145574380 is an abundant number, since it is smaller than the sum of its proper divisors (82660131860).

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

75145574380 is a wasteful number, since it uses less digits than its factorization.

75145574380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757278728 (or 3757278726 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 75145574380 in words is "seventy-five billion, one hundred forty-five million, five hundred seventy-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 3757278719 7514557438 15029114876 18786393595 37572787190 75145574380