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1397124480 = 27356179151
BaseRepresentation
bin101001101000110…
…0110110110000000
310121100221021111010
41103101212312000
510330130440410
6350345120520
746423235133
oct12321466600
93540837433
101397124480
11657705334
1232ba89140
131935b299b
14d37a421a
15829c7c20
hex53466d80

1397124480 has 256 divisors, whose sum is σ = 4613990400. Its totient is φ = 359424000.

The previous prime is 1397124457. The next prime is 1397124497. The reversal of 1397124480 is 844217931.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 9252405 + ... + 9252555.

It is an arithmetic number, because the mean of its divisors is an integer number (18023400).

Almost surely, 21397124480 is an apocalyptic number.

1397124480 is a gapful number since it is divisible by the number (10) 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 1397124480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2306995200).

1397124480 is an abundant number, since it is smaller than the sum of its proper divisors (3216865920).

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

1397124480 is a wasteful number, since it uses less digits than its factorization.

1397124480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1397124480 is about 37378.1283640580. The cubic root of 1397124480 is about 1117.9225093847.

The spelling of 1397124480 in words is "one billion, three hundred ninety-seven million, one hundred twenty-four thousand, four hundred eighty".