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201250828881 = 3325129696153
BaseRepresentation
bin1011101101101101111…
…0111111001001010001
3201020110111221101011000
42323123132333021101
511244130203011011
6232241531412213
720353116551304
oct2733336771121
9636414841130
10201250828881
1178393934483
12330065b4069
1315c934cc0cb
149a52282b3b
15537d1a0356
hex2edb7bf251

201250828881 has 16 divisors (see below), whose sum is σ = 299337232320. Its totient is φ = 133632684000.

The previous prime is 201250828873. The next prime is 201250828949. The reversal of 201250828881 is 188828052102.

It is not a de Polignac number, because 201250828881 - 23 = 201250828873 is a prime.

It is a super-2 number, since 2×2012508288812 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201250828381) 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, 14841300 + ... + 14854853.

It is an arithmetic number, because the mean of its divisors is an integer number (18708577020).

Almost surely, 2201250828881 is an apocalyptic number.

It is an amenable number.

201250828881 is a deficient number, since it is larger than the sum of its proper divisors (98086403439).

201250828881 is a wasteful number, since it uses less digits than its factorization.

201250828881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29696413 (or 29696407 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The spelling of 201250828881 in words is "two hundred one billion, two hundred fifty million, eight hundred twenty-eight thousand, eight hundred eighty-one".

Divisors: 1 3 9 27 251 753 2259 6777 29696153 89088459 267265377 801796131 7453734403 22361203209 67083609627 201250828881