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149748632 = 23112154699
BaseRepresentation
bin10001110110011…
…11101110011000
3101102210000111122
420323033232120
5301313424012
622505344412
73465561635
oct1073175630
9342700448
10149748632
1177590400
1242198108
1325041677
1415c6118c
15d22ee72
hex8ecfb98

149748632 has 24 divisors (see below), whose sum is σ = 308626500. Its totient is φ = 68067120.

The previous prime is 149748587. The next prime is 149748637. The reversal of 149748632 is 236847941.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149748637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76382 + ... + 78317.

Almost surely, 2149748632 is an apocalyptic number.

It is an amenable number.

149748632 is an abundant number, since it is smaller than the sum of its proper divisors (158877868).

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

149748632 is a wasteful number, since it uses less digits than its factorization.

149748632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154727 (or 154712 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 149748632 is about 12237.1823554281. The cubic root of 149748632 is about 531.0323204697.

The spelling of 149748632 in words is "one hundred forty-nine million, seven hundred forty-eight thousand, six hundred thirty-two".

Divisors: 1 2 4 8 11 22 44 88 121 242 484 968 154699 309398 618796 1237592 1701689 3403378 6806756 13613512 18718579 37437158 74874316 149748632