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3111119940 = 223551851999
BaseRepresentation
bin1011100101101111…
…1110110001000100
322000211010021020110
42321123332301010
522332421314230
61232414033020
7140045040345
oct27133766104
98024107213
103111119940
111357167505
12729aa8770
133a771c596
142172900cc
151331e34b0
hexb96fec44

3111119940 has 24 divisors (see below), whose sum is σ = 8711136000. Its totient is φ = 829631968.

The previous prime is 3111119929. The next prime is 3111119941. The reversal of 3111119940 is 499111113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3111119898 and 3111119907.

It is not an unprimeable number, because it can be changed into a prime (3111119941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25925940 + ... + 25926059.

It is an arithmetic number, because the mean of its divisors is an integer number (362964000).

Almost surely, 23111119940 is an apocalyptic number.

3111119940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3111119940 is an abundant number, since it is smaller than the sum of its proper divisors (5600016060).

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

3111119940 is a wasteful number, since it uses less digits than its factorization.

3111119940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51852011 (or 51852009 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 30.

The square root of 3111119940 is about 55777.4142462700. The cubic root of 3111119940 is about 1459.8410942335.

The spelling of 3111119940 in words is "three billion, one hundred eleven million, one hundred nineteen thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 51851999 103703998 155555997 207407996 259259995 311111994 518519990 622223988 777779985 1037039980 1555559970 3111119940