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149933448 = 23327297487
BaseRepresentation
bin10001110111111…
…00110110001000
3101110010102000200
420323330312020
5301340332243
622513332200
73500261520
oct1073746610
9343112020
10149933448
11776a7245
1242267060
13250a7822
1415cac680
15d269ad3
hex8efcd88

149933448 has 48 divisors (see below), whose sum is σ = 464081280. Its totient is φ = 42837984.

The previous prime is 149933447. The next prime is 149933461. The reversal of 149933448 is 844339941.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (149933447) 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, 148240 + ... + 149247.

It is an arithmetic number, because the mean of its divisors is an integer number (9668360).

Almost surely, 2149933448 is an apocalyptic number.

149933448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149933448 is an abundant number, since it is smaller than the sum of its proper divisors (314147832).

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

149933448 is a wasteful number, since it uses less digits than its factorization.

149933448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297506 (or 297499 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 149933448 is about 12244.7314384596. The cubic root of 149933448 is about 531.2506929080.

The spelling of 149933448 in words is "one hundred forty-nine million, nine hundred thirty-three thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 297487 594974 892461 1189948 1784922 2082409 2379896 2677383 3569844 4164818 5354766 6247227 7139688 8329636 10709532 12494454 16659272 18741681 21419064 24988908 37483362 49977816 74966724 149933448