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10111100940 = 2233518724261
BaseRepresentation
bin10010110101010101…
…10010100000001100
3222002122211010222000
421122222302200030
5131201420212230
64351151552300
7505363640253
oct113252624014
928078733860
1010111100940
1143194a8876
121b6222b690
13c51a19985
146bcc0379a
153e2a06b60
hex25aab280c

10111100940 has 48 divisors (see below), whose sum is σ = 31456760160. Its totient is φ = 2696293440.

The previous prime is 10111100927. The next prime is 10111100941. The reversal of 10111100940 is 4900111101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10111100941) 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, 9361591 + ... + 9362670.

It is an arithmetic number, because the mean of its divisors is an integer number (655349170).

Almost surely, 210111100940 is an apocalyptic number.

10111100940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111100940 is an abundant number, since it is smaller than the sum of its proper divisors (21345659220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10111100940 is a wasteful number, since it uses less digits than its factorization.

10111100940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18724279 (or 18724271 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 10111100940 in words is "ten billion, one hundred eleven million, one hundred thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 18724261 37448522 56172783 74897044 93621305 112345566 168518349 187242610 224691132 280863915 337036698 374485220 505555047 561727830 674073396 842591745 1011110094 1123455660 1685183490 2022220188 2527775235 3370366980 5055550470 10111100940