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149900472 = 23329672153
BaseRepresentation
bin10001110111101…
…00110010111000
3101110001201210100
420323310302320
5301333303342
622512515400
73500063421
oct1073646270
9343051710
10149900472
1177684497
124224bb60
1325095807
1415ca0648
15d25ee4c
hex8ef4cb8

149900472 has 48 divisors (see below), whose sum is σ = 406589040. Its totient is φ = 49891968.

The previous prime is 149900467. The next prime is 149900479. The reversal of 149900472 is 274009941.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149900479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68548 + ... + 70700.

It is an arithmetic number, because the mean of its divisors is an integer number (8470605).

Almost surely, 2149900472 is an apocalyptic number.

149900472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149900472 is an abundant number, since it is smaller than the sum of its proper divisors (256688568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149900472 is a wasteful number, since it uses less digits than its factorization.

149900472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132 (or 3125 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 149900472 is about 12243.3848261010. The cubic root of 149900472 is about 531.2117427214.

The spelling of 149900472 in words is "one hundred forty-nine million, nine hundred thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 967 1934 2153 2901 3868 4306 5802 6459 7736 8612 8703 11604 12918 17224 17406 19377 23208 25836 34812 38754 51672 69624 77508 155016 2081951 4163902 6245853 8327804 12491706 16655608 18737559 24983412 37475118 49966824 74950236 149900472