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149442083 = 7149143281
BaseRepresentation
bin10001110100001…
…00111000100011
3101102012102222222
420322010320203
5301224121313
622455021255
73463144130
oct1072047043
9342172888
10149442083
11773a105a
124206a82b
1324c64c8b
1415bc1587
15d1be208
hex8e84e23

149442083 has 8 divisors (see below), whose sum is σ = 171938400. Its totient is φ = 127232640.

The previous prime is 149442079. The next prime is 149442101. The reversal of 149442083 is 380244941.

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

It is a cyclic number.

It is not a de Polignac number, because 149442083 - 22 = 149442079 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149442283) 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, 70598 + ... + 72683.

It is an arithmetic number, because the mean of its divisors is an integer number (21492300).

Almost surely, 2149442083 is an apocalyptic number.

149442083 is a deficient number, since it is larger than the sum of its proper divisors (22496317).

149442083 is a wasteful number, since it uses less digits than its factorization.

149442083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143437.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 149442083 is about 12224.6506289546. The cubic root of 149442083 is about 530.6697158584.

The spelling of 149442083 in words is "one hundred forty-nine million, four hundred forty-two thousand, eighty-three".

Divisors: 1 7 149 1043 143281 1002967 21348869 149442083