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187000990141 = 726714427163
BaseRepresentation
bin1010111000101000100…
…0001010100110111101
3122212200102100120020211
42232022020022212331
511030434223141031
6221523532112421
716340026122040
oct2561210124675
9585612316224
10187000990141
1172341202749
12302aa305711
1314832206074
14909d932c57
154ce716abb1
hex2b8a20a9bd

187000990141 has 4 divisors (see below), whose sum is σ = 213715417312. Its totient is φ = 160286562972.

The previous prime is 187000990117. The next prime is 187000990177. The reversal of 187000990141 is 141099000781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 187000990141 - 29 = 187000989629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 187000990094 and 187000990103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187000910141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13357213575 + ... + 13357213588.

It is an arithmetic number, because the mean of its divisors is an integer number (53428854328).

Almost surely, 2187000990141 is an apocalyptic number.

It is an amenable number.

187000990141 is a deficient number, since it is larger than the sum of its proper divisors (26714427171).

187000990141 is an equidigital number, since it uses as much as digits as its factorization.

187000990141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26714427170.

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 187000990141 in words is "one hundred eighty-seven billion, nine hundred ninety thousand, one hundred forty-one".

Divisors: 1 7 26714427163 187000990141