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149949744 = 2437446279
BaseRepresentation
bin10001111000000…
…00110100110000
3101110011020101020
420330000310300
5301341342434
622513535440
73500360160
oct1074006460
9343136336
10149949744
117770850a
1242274580
13250b2079
1415cb45a0
15d26e849
hex8f00d30

149949744 has 40 divisors (see below), whose sum is σ = 442709760. Its totient is φ = 42842688.

The previous prime is 149949743. The next prime is 149949791. The reversal of 149949744 is 447949941.

It is not an unprimeable number, because it can be changed into a prime (149949743) 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, 222804 + ... + 223475.

It is an arithmetic number, because the mean of its divisors is an integer number (11067744).

Almost surely, 2149949744 is an apocalyptic number.

149949744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

149949744 is an abundant number, since it is smaller than the sum of its proper divisors (292760016).

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

149949744 is a wasteful number, since it uses less digits than its factorization.

149949744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446297 (or 446291 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 149949744 is about 12245.3968494288. The cubic root of 149949744 is about 531.2699391086.

The spelling of 149949744 in words is "one hundred forty-nine million, nine hundred forty-nine thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 446279 892558 1338837 1785116 2677674 3123953 3570232 5355348 6247906 7140464 9371859 10710696 12495812 18743718 21421392 24991624 37487436 49983248 74974872 149949744