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75114520 = 23513144451
BaseRepresentation
bin1000111101000…
…10100000011000
312020100012202021
410132202200120
5123212131040
611241544224
71601314525
oct436424030
9166305667
1075114520
1139444718
12211a5074
131273c780
149d9414c
1568db24a
hex47a2818

75114520 has 32 divisors (see below), whose sum is σ = 182009520. Its totient is φ = 27734400.

The previous prime is 75114509. The next prime is 75114563. The reversal of 75114520 is 2541157.

It is a super-2 number, since 2×751145202 = 11284382229660800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71706 + ... + 72745.

Almost surely, 275114520 is an apocalyptic number.

It is an amenable number.

75114520 is an abundant number, since it is smaller than the sum of its proper divisors (106895000).

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

75114520 is a wasteful number, since it uses less digits than its factorization.

75114520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144475 (or 144471 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 75114520 is about 8666.8633311020. The cubic root of 75114520 is about 421.9308677362.

Adding to 75114520 its reverse (2541157), we get a palindrome (77655677).

The spelling of 75114520 in words is "seventy-five million, one hundred fourteen thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 144451 288902 577804 722255 1155608 1444510 1877863 2889020 3755726 5778040 7511452 9389315 15022904 18778630 37557260 75114520