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166241372 = 22113778213
BaseRepresentation
bin10011110100010…
…10010001011100
3102120210221021212
421322022101130
5320024210442
624255043552
74056012503
oct1172122134
9376727255
10166241372
1185925670
12478105b8
132859759b
141811583a
15e8dba82
hex9e8a45c

166241372 has 12 divisors (see below), whose sum is σ = 317369976. Its totient is φ = 75564240.

The previous prime is 166241353. The next prime is 166241381. The reversal of 166241372 is 273142661.

It is a super-3 number, since 3×1662413723 (a number of 26 digits) contains 333 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1889063 + ... + 1889150.

It is an arithmetic number, because the mean of its divisors is an integer number (26447498).

Almost surely, 2166241372 is an apocalyptic number.

It is an amenable number.

166241372 is a deficient number, since it is larger than the sum of its proper divisors (151128604).

166241372 is a wasteful number, since it uses less digits than its factorization.

166241372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778228 (or 3778226 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 166241372 is about 12893.4623743973. The cubic root of 166241372 is about 549.8527120755.

It can be divided in two parts, 1662 and 41372, that added together give a palindrome (43034).

The spelling of 166241372 in words is "one hundred sixty-six million, two hundred forty-one thousand, three hundred seventy-two".

Divisors: 1 2 4 11 22 44 3778213 7556426 15112852 41560343 83120686 166241372