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141987400 = 23521741761
BaseRepresentation
bin10000111011010…
…00111001001000
3100220011201002121
420131220321020
5242322044100
622031141024
73342605302
oct1035507110
9326151077
10141987400
117316a265
123b674774
1323554b19
1414c00972
15c6ea51a
hex8768e48

141987400 has 48 divisors (see below), whose sum is σ = 349547940. Its totient is φ = 53452800.

The previous prime is 141987379. The next prime is 141987413. The reversal of 141987400 is 4789141.

It can be written as a sum of positive squares in 6 ways, for example, as 21734244 + 120253156 = 4662^2 + 10966^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17481 + ... + 24280.

Almost surely, 2141987400 is an apocalyptic number.

141987400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141987400 is an abundant number, since it is smaller than the sum of its proper divisors (207560540).

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

141987400 is a wasteful number, since it uses less digits than its factorization.

141987400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41794 (or 41785 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 141987400 is about 11915.8465918289. The cubic root of 141987400 is about 521.6949133018.

The spelling of 141987400 in words is "one hundred forty-one million, nine hundred eighty-seven thousand, four hundred".

Divisors: 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 136 170 200 340 425 680 850 1700 3400 41761 83522 167044 208805 334088 417610 709937 835220 1044025 1419874 1670440 2088050 2839748 3549685 4176100 5679496 7099370 8352200 14198740 17748425 28397480 35496850 70993700 141987400