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120253728 = 25371491201
BaseRepresentation
bin1110010101011…
…10110100100000
322101021112002210
413022232310200
5221241104403
615533242120
72660065650
oct712566440
9271245083
10120253728
1161975451
1234333340
131bbb556a
1411d84360
15a855b03
hex72aed20

120253728 has 96 divisors (see below), whose sum is σ = 363484800. Its totient is φ = 34099200.

The previous prime is 120253711. The next prime is 120253799. The reversal of 120253728 is 827352021.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 120253695 and 120253704.

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, 99528 + ... + 100728.

It is an arithmetic number, because the mean of its divisors is an integer number (3786300).

Almost surely, 2120253728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120253728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181742400).

120253728 is an abundant number, since it is smaller than the sum of its proper divisors (243231072).

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

120253728 is a wasteful number, since it uses less digits than its factorization.

120253728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1362 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 120253728 is about 10966.0260805818. The cubic root of 120253728 is about 493.5898073928.

It can be divided in two parts, 12025 and 3728, that added together give a triangular number (15753 = T177).

The spelling of 120253728 in words is "one hundred twenty million, two hundred fifty-three thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 149 168 224 298 336 447 596 672 894 1043 1192 1201 1788 2086 2384 2402 3129 3576 3603 4172 4768 4804 6258 7152 7206 8344 8407 9608 12516 14304 14412 16688 16814 19216 25032 25221 28824 33376 33628 38432 50064 50442 57648 67256 100128 100884 115296 134512 178949 201768 269024 357898 403536 536847 715796 807072 1073694 1252643 1431592 2147388 2505286 2863184 3757929 4294776 5010572 5726368 7515858 8589552 10021144 15031716 17179104 20042288 30063432 40084576 60126864 120253728