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149245700 = 22521492457
BaseRepresentation
bin10001110010101…
…00111100000100
3101101211110121112
420321110330010
5301201330300
622450504152
73461365442
oct1071247404
9341743545
10149245700
117727755a
1241b95058
1324bc6786
1415b6db92
15d180e35
hex8e54f04

149245700 has 18 divisors (see below), whose sum is σ = 323863386. Its totient is φ = 59698240.

The previous prime is 149245697. The next prime is 149245709. The reversal of 149245700 is 7542941.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 22052416 + 127193284 = 4696^2 + 11278^2 .

It is not an unprimeable number, because it can be changed into a prime (149245709) 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, 746129 + ... + 746328.

Almost surely, 2149245700 is an apocalyptic number.

149245700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149245700 is an abundant number, since it is smaller than the sum of its proper divisors (174617686).

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

149245700 is a wasteful number, since it uses less digits than its factorization.

149245700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492471 (or 1492464 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 149245700 is about 12216.6157343186. The cubic root of 149245700 is about 530.4371615654.

The spelling of 149245700 in words is "one hundred forty-nine million, two hundred forty-five thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1492457 2984914 5969828 7462285 14924570 29849140 37311425 74622850 149245700