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1900290011001 = 31753857691843
BaseRepresentation
bin11011101001110010000…
…111000110111101111001
320201122222110220121000120
4123221302013012331321
5222113243220323001
64012551533523453
7254201646403464
oct33516207067571
96648873817016
101900290011001
116729aa1972a8
12268357343589
1310a272b65b95
1467d901622db
153466e47c236
hex1ba721c6f79

1900290011001 has 16 divisors (see below), whose sum is σ = 2682816058944. Its totient is φ = 1192314968064.

The previous prime is 1900290010999. The next prime is 1900290011029. The reversal of 1900290011001 is 1001100920091.

It is not a de Polignac number, because 1900290011001 - 21 = 1900290010999 is a prime.

It is a super-2 number, since 2×19002900110012 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1900290011051) 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, 2400786 + ... + 3092628.

It is an arithmetic number, because the mean of its divisors is an integer number (167676003684).

Almost surely, 21900290011001 is an apocalyptic number.

It is an amenable number.

1900290011001 is a deficient number, since it is larger than the sum of its proper divisors (782526047943).

1900290011001 is a wasteful number, since it uses less digits than its factorization.

1900290011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745720.

The product of its (nonzero) digits is 162, while the sum is 24.

Adding to 1900290011001 its reverse (1001100920091), we get a palindrome (2901390931092).

The spelling of 1900290011001 in words is "one trillion, nine hundred billion, two hundred ninety million, eleven thousand, one".

Divisors: 1 3 17 51 53857 161571 691843 915569 2075529 2746707 11761331 35283993 37260588451 111781765353 633430003667 1900290011001