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149230433 = 1129677691
BaseRepresentation
bin10001110010100…
…01001101100001
3101101210200200002
420321101031201
5301200333213
622450305345
73461303102
oct1071211541
9341720602
10149230433
1177267040
1241b88255
1324bbc841
1415b683a9
15d17b658
hex8e51361

149230433 has 16 divisors (see below), whose sum is σ = 168903360. Its totient is φ = 130603200.

The previous prime is 149230423. The next prime is 149230489. The reversal of 149230433 is 334032941.

It is a cyclic number.

It is not a de Polignac number, because 149230433 - 220 = 148181857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 149230396 and 149230405.

It is not an unprimeable number, because it can be changed into a prime (149230423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215618 + ... + 216308.

It is an arithmetic number, because the mean of its divisors is an integer number (10556460).

Almost surely, 2149230433 is an apocalyptic number.

It is an amenable number.

149230433 is a deficient number, since it is larger than the sum of its proper divisors (19672927).

149230433 is a wasteful number, since it uses less digits than its factorization.

149230433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 149230433 is about 12215.9908726227. The cubic root of 149230433 is about 530.4190740308.

The spelling of 149230433 in words is "one hundred forty-nine million, two hundred thirty thousand, four hundred thirty-three".

Divisors: 1 11 29 319 677 691 7447 7601 19633 20039 215963 220429 467807 5145877 13566403 149230433