Search a number
-
+
72750054 = 23131815153
BaseRepresentation
bin1000101011000…
…01001111100110
312001220002022110
410111201033212
5122111000204
611115141450
71542236166
oct425411746
9161802273
1072750054
113807a213
1220444886
13120c2490
14993a5a6
1565c0889
hex45613e6

72750054 has 32 divisors (see below), whose sum is σ = 157588704. Its totient is φ = 22256640.

The previous prime is 72750001. The next prime is 72750061. The reversal of 72750054 is 45005727.

It is a congruent number.

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, 11542 + ... + 16694.

It is an arithmetic number, because the mean of its divisors is an integer number (4924647).

Almost surely, 272750054 is an apocalyptic number.

72750054 is an abundant number, since it is smaller than the sum of its proper divisors (84838650).

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

72750054 is a wasteful number, since it uses less digits than its factorization.

72750054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 72750054 is about 8529.3642201515. The cubic root of 72750054 is about 417.4563837448.

The spelling of 72750054 in words is "seventy-two million, seven hundred fifty thousand, fifty-four".

Divisors: 1 2 3 6 13 26 39 78 181 362 543 1086 2353 4706 5153 7059 10306 14118 15459 30918 66989 133978 200967 401934 932693 1865386 2798079 5596158 12125009 24250018 36375027 72750054