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187141922972 = 2271658950433
BaseRepresentation
bin1010111001001010000…
…1110010000010011100
3122220001020112200202022
42232102201302002130
511031231313013342
6221545524515312
716343360045654
oct2562241620234
9586036480668
10187141922972
1172403811664
123032954bb38
131485547bb84
1490b453b364
154d047089d2
hex2b9287209c

187141922972 has 12 divisors (see below), whose sum is σ = 332111018736. Its totient is φ = 92253060480.

The previous prime is 187141922963. The next prime is 187141923041. The reversal of 187141922972 is 279229141781.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329474933 + ... + 329475500.

It is an arithmetic number, because the mean of its divisors is an integer number (27675918228).

Almost surely, 2187141922972 is an apocalyptic number.

It is an amenable number.

187141922972 is a deficient number, since it is larger than the sum of its proper divisors (144969095764).

187141922972 is a wasteful number, since it uses less digits than its factorization.

187141922972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658950508 (or 658950506 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 53.

The spelling of 187141922972 in words is "one hundred eighty-seven billion, one hundred forty-one million, nine hundred twenty-two thousand, nine hundred seventy-two".

Divisors: 1 2 4 71 142 284 658950433 1317900866 2635801732 46785480743 93570961486 187141922972