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141075921 = 3734919249
BaseRepresentation
bin10000110100010…
…10010111010001
3100211110101210010
420122022113101
5242103412141
621555425133
73332061030
oct1032122721
9324411703
10141075921
11726a7478
123b2b51a9
13232c5c9c
1414a44717
15c5ba416
hex868a5d1

141075921 has 16 divisors (see below), whose sum is σ = 215600000. Its totient is φ = 80379648.

The previous prime is 141075919. The next prime is 141075929. The reversal of 141075921 is 129570141.

It is not a de Polignac number, because 141075921 - 21 = 141075919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (141075929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2296 + ... + 16953.

It is an arithmetic number, because the mean of its divisors is an integer number (13475000).

Almost surely, 2141075921 is an apocalyptic number.

It is an amenable number.

141075921 is a deficient number, since it is larger than the sum of its proper divisors (74524079).

141075921 is a wasteful number, since it uses less digits than its factorization.

141075921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 141075921 is about 11877.5385076202. The cubic root of 141075921 is about 520.5761870094.

The spelling of 141075921 in words is "one hundred forty-one million, seventy-five thousand, nine hundred twenty-one".

Divisors: 1 3 7 21 349 1047 2443 7329 19249 57747 134743 404229 6717901 20153703 47025307 141075921