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180152189 = 7116322129
BaseRepresentation
bin10101011110011…
…10011101111101
3110112222200100022
422233032131331
5332104332224
625513141525
74315161020
oct1257163575
9415880308
10180152189
1192767008
12503ba8a5
132b428239
1419cd71b7
1510c3865e
hexabce77d

180152189 has 8 divisors (see below), whose sum is σ = 206074560. Its totient is φ = 154276416.

The previous prime is 180152143. The next prime is 180152197. The reversal of 180152189 is 981251081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 180152189 - 212 = 180148093 is a prime.

It is a super-2 number, since 2×1801521892 = 64909622402983442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180152789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2924 + ... + 19205.

It is an arithmetic number, because the mean of its divisors is an integer number (25759320).

Almost surely, 2180152189 is an apocalyptic number.

It is an amenable number.

180152189 is a deficient number, since it is larger than the sum of its proper divisors (25922371).

180152189 is a wasteful number, since it uses less digits than its factorization.

180152189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23299.

The product of its (nonzero) digits is 5760, while the sum is 35.

The square root of 180152189 is about 13422.0784158043. The cubic root of 180152189 is about 564.7807006492.

The spelling of 180152189 in words is "one hundred eighty million, one hundred fifty-two thousand, one hundred eighty-nine".

Divisors: 1 7 1163 8141 22129 154903 25736027 180152189