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75112940 = 22572323327
BaseRepresentation
bin1000111101000…
…10000111101100
312020100010120202
410132202013230
5123212103230
611241533032
71601310110
oct436420754
9166303522
1075112940
1139443511
12211a4178
131273bb36
149d93740
1568daa45
hex47a21ec

75112940 has 48 divisors (see below), whose sum is σ = 188116992. Its totient is φ = 24632256.

The previous prime is 75112927. The next prime is 75112951. The reversal of 75112940 is 4921157.

It is an unprimeable number.

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, 8444 + ... + 14883.

It is an arithmetic number, because the mean of its divisors is an integer number (3919104).

Almost surely, 275112940 is an apocalyptic number.

75112940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75112940 is an abundant number, since it is smaller than the sum of its proper divisors (113004052).

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

75112940 is a wasteful number, since it uses less digits than its factorization.

75112940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23366 (or 23364 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 75112940 is about 8666.7721788449. The cubic root of 75112940 is about 421.9279093403.

The spelling of 75112940 in words is "seventy-five million, one hundred twelve thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 23327 46654 93308 116635 163289 233270 326578 466540 536521 653156 816445 1073042 1632890 2146084 2682605 3265780 3755647 5365210 7511294 10730420 15022588 18778235 37556470 75112940