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132155444 = 2261353897
BaseRepresentation
bin1111110000010…
…00100000110100
3100012200012012002
413320020200310
5232312433234
621040314432
73163205561
oct770104064
9305605162
10132155444
1168664383
1238312a18
13214c18b5
14137a1868
15b90727e
hex7e08834

132155444 has 12 divisors (see below), whose sum is σ = 231653604. Its totient is φ = 65968704.

The previous prime is 132155437. The next prime is 132155461. The reversal of 132155444 is 444551231.

It can be written as a sum of positive squares in 2 ways, for example, as 35880100 + 96275344 = 5990^2 + 9812^2 .

It is a super-2 number, since 2×1321554442 = 34930122757674272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24497 + ... + 29400.

It is an arithmetic number, because the mean of its divisors is an integer number (19304467).

Almost surely, 2132155444 is an apocalyptic number.

It is an amenable number.

132155444 is a deficient number, since it is larger than the sum of its proper divisors (99498160).

132155444 is a wasteful number, since it uses less digits than its factorization.

132155444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54514 (or 54512 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 132155444 is about 11495.8881344592. Note that the first 3 decimals coincide. The cubic root of 132155444 is about 509.3641235662.

It can be divided in two parts, 1321 and 55444, that added together give a palindrome (56765).

The spelling of 132155444 in words is "one hundred thirty-two million, one hundred fifty-five thousand, four hundred forty-four".

Divisors: 1 2 4 613 1226 2452 53897 107794 215588 33038861 66077722 132155444