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151490949 = 3232195521
BaseRepresentation
bin10010000011110…
…01000110000101
3101120001112111220
421001321012011
5302240202244
623010550553
73516436401
oct1101710605
9346045456
10151490949
1178570435
1242898459
132550171c
1416196101
15d476319
hex9079185

151490949 has 8 divisors (see below), whose sum is σ = 210770112. Its totient is φ = 96602880.

The previous prime is 151490923. The next prime is 151490951. The reversal of 151490949 is 949094151.

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 151490949 - 27 = 151490821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151490949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151490909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097692 + ... + 1097829.

It is an arithmetic number, because the mean of its divisors is an integer number (26346264).

Almost surely, 2151490949 is an apocalyptic number.

It is an amenable number.

151490949 is a deficient number, since it is larger than the sum of its proper divisors (59279163).

151490949 is a wasteful number, since it uses less digits than its factorization.

151490949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195547.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 151490949 is about 12308.1659478575. The cubic root of 151490949 is about 533.0838947714.

The spelling of 151490949 in words is "one hundred fifty-one million, four hundred ninety thousand, nine hundred forty-nine".

Divisors: 1 3 23 69 2195521 6586563 50496983 151490949