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149842015 = 549516053
BaseRepresentation
bin10001110111001…
…10100001011111
3101102221202121021
420323212201133
5301324421030
622511345011
73466431121
oct1073464137
9342852537
10149842015
1177644584
1242222167
132507501b
1415c87211
15d24c97a
hex8ee685f

149842015 has 8 divisors (see below), whose sum is σ = 179876448. Its totient is φ = 119829600.

The previous prime is 149842013. The next prime is 149842039. The reversal of 149842015 is 510248941.

It is a happy number.

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

It is not a de Polignac number, because 149842015 - 21 = 149842013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149842013) 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, 21729 + ... + 27781.

It is an arithmetic number, because the mean of its divisors is an integer number (22484556).

Almost surely, 2149842015 is an apocalyptic number.

149842015 is a deficient number, since it is larger than the sum of its proper divisors (30034433).

149842015 is an equidigital number, since it uses as much as digits as its factorization.

149842015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 149842015 is about 12240.9973041415. The cubic root of 149842015 is about 531.1426811591.

The spelling of 149842015 in words is "one hundred forty-nine million, eight hundred forty-two thousand, fifteen".

Divisors: 1 5 4951 6053 24755 30265 29968403 149842015