Search a number
-
+
28944125490 = 2357137829169
BaseRepresentation
bin11010111101001101…
…000100111000110010
32202201011110220211210
4122331031010320302
5433234144003430
621144033020550
72043156002340
oct327515047062
982634426753
1028944125490
1111303227975
1257393b4756
1329636c3997
141588114990
15b460ac2b0
hex6bd344e32

28944125490 has 32 divisors (see below), whose sum is σ = 79389601920. Its totient is φ = 6615800064.

The previous prime is 28944125453. The next prime is 28944125501. The reversal of 28944125490 is 9452144982.

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, 68914375 + ... + 68914794.

It is an arithmetic number, because the mean of its divisors is an integer number (2480925060).

Almost surely, 228944125490 is an apocalyptic number.

28944125490 is an abundant number, since it is smaller than the sum of its proper divisors (50445476430).

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

28944125490 is a wasteful number, since it uses less digits than its factorization.

28944125490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137829186.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 28944125490 in words is "twenty-eight billion, nine hundred forty-four million, one hundred twenty-five thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 137829169 275658338 413487507 689145845 826975014 964804183 1378291690 1929608366 2067437535 2894412549 4134875070 4824020915 5788825098 9648041830 14472062745 28944125490