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748135540 = 2251511911297
BaseRepresentation
bin101100100101111…
…010010001110100
31221010202020000201
4230211322101310
53013010314130
6202123050244
724353022115
oct5445722164
91833666021
10748135540
11354337339
1218a670984
13bbcc3c69
147150820c
1545a2ebca
hex2c97a474

748135540 has 48 divisors (see below), whose sum is σ = 1590994944. Its totient is φ = 295488000.

The previous prime is 748135529. The next prime is 748135567. The reversal of 748135540 is 45531847.

748135540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7481355402 = 1119413572422183200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 748135540.

It is a congruent 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, 576172 + ... + 577468.

It is an arithmetic number, because the mean of its divisors is an integer number (33145728).

Almost surely, 2748135540 is an apocalyptic number.

It is an amenable number.

748135540 is an abundant number, since it is smaller than the sum of its proper divisors (842859404).

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

748135540 is a wasteful number, since it uses less digits than its factorization.

748135540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 748135540 is about 27352.0664667224. The cubic root of 748135540 is about 907.8067942018.

The spelling of 748135540 in words is "seven hundred forty-eight million, one hundred thirty-five thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 151 191 302 382 604 755 764 955 1297 1510 1910 2594 3020 3820 5188 6485 12970 25940 28841 57682 115364 144205 195847 247727 288410 391694 495454 576820 783388 979235 990908 1238635 1958470 2477270 3916940 4954540 37406777 74813554 149627108 187033885 374067770 748135540