Search a number
-
+
1520474112 = 2113331887
BaseRepresentation
bin101101010100000…
…1001100000000000
310220222001002101000
41122220021200000
511103220132422
6410513012000
752451550063
oct13250114000
93828032330
101520474112
117102a4783
12365254000
131b3010431
14105d128da
158d740cac
hex5aa09800

1520474112 has 192 divisors, whose sum is σ = 4654540800. Its totient is φ = 489922560.

The previous prime is 1520474093. The next prime is 1520474113. The reversal of 1520474112 is 2114740251.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520474113) 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, 1713733 + ... + 1714619.

It is an arithmetic number, because the mean of its divisors is an integer number (24242400).

Almost surely, 21520474112 is an apocalyptic number.

1520474112 is a gapful number since it is divisible by the number (12) 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 1520474112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2327270400).

1520474112 is an abundant number, since it is smaller than the sum of its proper divisors (3134066688).

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

1520474112 is an equidigital number, since it uses as much as digits as its factorization.

1520474112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1520474112 is about 38993.2572632757. The cubic root of 1520474112 is about 1149.8989481465.

The spelling of 1520474112 in words is "one billion, five hundred twenty million, four hundred seventy-four thousand, one hundred twelve".