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149990141 = 782925847
BaseRepresentation
bin10001111000010…
…10101011111101
3101110020021210102
420330022223331
5301344141031
622514450445
73500616020
oct1074125375
9343207712
10149990141
11777358a4
1242293a25
13250c7582
1415cc51b7
15d27b7cb
hex8f0aafd

149990141 has 8 divisors (see below), whose sum is σ = 171630720. Its totient is φ = 128402928.

The previous prime is 149990101. The next prime is 149990209. The reversal of 149990141 is 141099941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149990141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149990095 and 149990104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149990101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7121 + ... + 18726.

It is an arithmetic number, because the mean of its divisors is an integer number (21453840).

Almost surely, 2149990141 is an apocalyptic number.

It is an amenable number.

149990141 is a deficient number, since it is larger than the sum of its proper divisors (21640579).

149990141 is an equidigital number, since it uses as much as digits as its factorization.

149990141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26683.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 149990141 is about 12247.0462153125. The cubic root of 149990141 is about 531.3176435020.

The spelling of 149990141 in words is "one hundred forty-nine million, nine hundred ninety thousand, one hundred forty-one".

Divisors: 1 7 829 5803 25847 180929 21427163 149990141