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149701860 = 2232572111543
BaseRepresentation
bin10001110110001…
…00010011100100
3101102200122100100
420323010103210
5301310424420
622504344100
73465305400
oct1073042344
9342618310
10149701860
1177559250
1242175030
13250262a9
1415c4c100
15d221190
hex8ec44e4

149701860 has 216 divisors, whose sum is σ = 576628416. Its totient is φ = 31086720.

The previous prime is 149701859. The next prime is 149701861. The reversal of 149701860 is 68107941.

It is an interprime number because it is at equal distance from previous prime (149701859) and next prime (149701861).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (149701861) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 96249 + ... + 97791.

It is an arithmetic number, because the mean of its divisors is an integer number (2669576).

Almost surely, 2149701860 is an apocalyptic number.

149701860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149701860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288314208).

149701860 is an abundant number, since it is smaller than the sum of its proper divisors (426926556).

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

149701860 is a wasteful number, since it uses less digits than its factorization.

149701860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583 (or 1571 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 149701860 is about 12235.2711453404. The cubic root of 149701860 is about 530.9770277442.

The spelling of 149701860 in words is "one hundred forty-nine million, seven hundred one thousand, eight hundred sixty".