Search a number
-
+
2931813384192 = 2173372112953
BaseRepresentation
bin101010101010011101101…
…100100000000000000000
3101101021112010010022001000
4222222131230200000000
5341013323211243232
610122504555412000
7421550032404600
oct52523554400000
911337463108030
102931813384192
11a30414250030
123b4256454000
13183612cb0664
14a1c8707cc00
15513e343227c
hex2aa9db20000

2931813384192 has 1728 divisors, whose sum is σ = 11619016617600. Its totient is φ = 721378344960.

The previous prime is 2931813384167. The next prime is 2931813384217. The reversal of 2931813384192 is 2914833181392.

2931813384192 is a `hidden beast` number, since 2 + 9 + 3 + 181 + 338 + 41 + 92 = 666.

It is an interprime number because it is at equal distance from previous prime (2931813384167) and next prime (2931813384217).

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55317233638 + ... + 55317233690.

It is an arithmetic number, because the mean of its divisors is an integer number (6723967950).

Almost surely, 22931813384192 is an apocalyptic number.

2931813384192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2931813384192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5809508308800).

2931813384192 is an abundant number, since it is smaller than the sum of its proper divisors (8687203233408).

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

2931813384192 is an equidigital number, since it uses as much as digits as its factorization.

2931813384192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 105 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 2931813384192 in words is "two trillion, nine hundred thirty-one billion, eight hundred thirteen million, three hundred eighty-four thousand, one hundred ninety-two".