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149794940 = 22556913163
BaseRepresentation
bin10001110110110…
…11000001111100
3101102212101000202
420323123001330
5301321414230
622510343032
73466143641
oct1073330174
9342771022
10149794940
1177612179
12421baa78
1325059779
1415c73dc8
15d23da45
hex8edb07c

149794940 has 24 divisors (see below), whose sum is σ = 315146160. Its totient is φ = 59808128.

The previous prime is 149794937. The next prime is 149794943. The reversal of 149794940 is 49497941.

It is an interprime number because it is at equal distance from previous prime (149794937) and next prime (149794943).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149794943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4799 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (13131090).

Almost surely, 2149794940 is an apocalyptic number.

149794940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149794940 is an abundant number, since it is smaller than the sum of its proper divisors (165351220).

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

149794940 is a wasteful number, since it uses less digits than its factorization.

149794940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13741 (or 13739 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 149794940 is about 12239.0743114012. The cubic root of 149794940 is about 531.0870533243.

The spelling of 149794940 in words is "one hundred forty-nine million, seven hundred ninety-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 569 1138 2276 2845 5690 11380 13163 26326 52652 65815 131630 263260 7489747 14979494 29958988 37448735 74897470 149794940