Search a number
-
+
6120990720 = 211335132131
BaseRepresentation
bin1011011001101011…
…01110100000000000
3120210120201112202000
411230311232200000
5100013433200340
62451214024000
7304453363665
oct55465564000
916716645660
106120990720
112661159a19
121229aa8000
1376717b900
14420d05a6c
1525c586d30
hex16cd6e800

6120990720 has 576 divisors, whose sum is σ = 23740516800. Its totient is φ = 1495203840.

The previous prime is 6120990691. The next prime is 6120990749. The reversal of 6120990720 is 270990216.

It is an interprime number because it is at equal distance from previous prime (6120990691) and next prime (6120990749).

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×61209907202 = 74933054788652236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46725055 + ... + 46725185.

It is an arithmetic number, because the mean of its divisors is an integer number (41216175).

Almost surely, 26120990720 is an apocalyptic number.

6120990720 is a gapful number since it is divisible by the number (60) 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 6120990720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11870258400).

6120990720 is an abundant number, since it is smaller than the sum of its proper divisors (17619526080).

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

6120990720 is a wasteful number, since it uses less digits than its factorization.

6120990720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 6120990720 is about 78236.7606691381. The cubic root of 6120990720 is about 1829.2535520592.

The spelling of 6120990720 in words is "six billion, one hundred twenty million, nine hundred ninety thousand, seven hundred twenty".