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190111910001 = 31327893174763
BaseRepresentation
bin1011000100001110001…
…1011000100001110001
3200011201020002200000220
42301003203120201301
511103322122110001
6223200342003253
716510102400166
oct2610343304161
9604636080026
10190111910001
11736982428a2
1230a18116529
1314c09885550
1492b6b7006d
154e2a31ec36
hex2c438d8871

190111910001 has 16 divisors (see below), whose sum is σ = 272992552896. Its totient is φ = 116987080896.

The previous prime is 190111909951. The next prime is 190111910003. The reversal of 190111910001 is 100019111091.

It is not a de Polignac number, because 190111910001 - 27 = 190111909873 is a prime.

It is a super-2 number, since 2×1901119100012 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190111910003) 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, 1000446 + ... + 1175208.

It is an arithmetic number, because the mean of its divisors is an integer number (17062034556).

Almost surely, 2190111910001 is an apocalyptic number.

It is an amenable number.

190111910001 is a deficient number, since it is larger than the sum of its proper divisors (82880642895).

190111910001 is a wasteful number, since it uses less digits than its factorization.

190111910001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202672.

The product of its (nonzero) digits is 81, while the sum is 24.

The spelling of 190111910001 in words is "one hundred ninety billion, one hundred eleven million, nine hundred ten thousand, one".

Divisors: 1 3 13 39 27893 83679 174763 362609 524289 1087827 2271919 6815757 4874664359 14623993077 63370636667 190111910001