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141891890 = 25715712911
BaseRepresentation
bin10000111010100…
…01100100110010
3100212222212002012
420131101210302
5242311020030
622025122522
73342026660
oct1035214462
9325885065
10141891890
1173104528
123b629442
13235204ca
1414bb7c30
15c6cc095
hex8751932

141891890 has 32 divisors (see below), whose sum is σ = 293773824. Its totient is φ = 48335040.

The previous prime is 141891889. The next prime is 141891907. The reversal of 141891890 is 98198141.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4535 + ... + 17445.

It is an arithmetic number, because the mean of its divisors is an integer number (9180432).

Almost surely, 2141891890 is an apocalyptic number.

141891890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

141891890 is an abundant number, since it is smaller than the sum of its proper divisors (151881934).

141891890 is a wasteful number, since it uses less digits than its factorization.

141891890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13082.

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 141891890 is about 11911.8382292575. The cubic root of 141891890 is about 521.5779117048.

The spelling of 141891890 in words is "one hundred forty-one million, eight hundred ninety-one thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 157 314 785 1099 1570 2198 5495 10990 12911 25822 64555 90377 129110 180754 451885 903770 2027027 4054054 10135135 14189189 20270270 28378378 70945945 141891890