Search a number
-
+
75120164 = 2271012263
BaseRepresentation
bin1000111101000…
…11111000100100
312020100111111022
410132203320210
5123212321124
611242030312
71601340140
oct436437044
9166314438
1075120164
1139448989
12211a8398
1312742202
149d96220
1568dcc5e
hex47a3e24

75120164 has 36 divisors (see below), whose sum is σ = 152319552. Its totient is φ = 31754400.

The previous prime is 75120131. The next prime is 75120169. The reversal of 75120164 is 46102157.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (75120169) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 285497 + ... + 285759.

Almost surely, 275120164 is an apocalyptic number.

It is an amenable number.

75120164 is an abundant number, since it is smaller than the sum of its proper divisors (77199388).

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

75120164 is a wasteful number, since it uses less digits than its factorization.

75120164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 75120164 is about 8667.1889329817. The cubic root of 75120164 is about 421.9414352366.

The spelling of 75120164 in words is "seventy-five million, one hundred twenty thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 101 202 263 404 526 707 1052 1414 1841 2828 3682 7364 10201 20402 26563 40804 53126 71407 106252 142814 185941 285628 371882 743764 2682863 5365726 10731452 18780041 37560082 75120164