Search a number
-
+
2451290688 = 26357112389
BaseRepresentation
bin1001001000011011…
…1011101001000000
320022211112110200000
42102012323221000
520010012300223
61043123400000
7114513425040
oct22206735100
96284473600
102451290688
111048764a80
12584b23000
13300b06682
141937b1720
15e5308543
hex921bba40

2451290688 has 672 divisors, whose sum is σ = 9585838080. Its totient is φ = 602173440.

The previous prime is 2451290669. The next prime is 2451290693. The reversal of 2451290688 is 8860921542.

It is a tau number, because it is divible by the number of its divisors (672).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27542548 + ... + 27542636.

It is an arithmetic number, because the mean of its divisors is an integer number (14264640).

Almost surely, 22451290688 is an apocalyptic number.

2451290688 is a gapful number since it is divisible by the number (28) 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 2451290688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4792919040).

2451290688 is an abundant number, since it is smaller than the sum of its proper divisors (7134547392).

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

2451290688 is a wasteful number, since it uses less digits than its factorization.

2451290688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 2451290688 is about 49510.5108840537. The cubic root of 2451290688 is about 1348.3364397808.

The spelling of 2451290688 in words is "two billion, four hundred fifty-one million, two hundred ninety thousand, six hundred eighty-eight".