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103287977628 = 22311231371671487
BaseRepresentation
bin110000000110001110…
…0010111011010011100
3100212121022112220121220
41200030130113122130
53143013210241003
6115241055453340
710314400216053
oct1401434273234
9325538486556
10103287977628
113a893409390
1218026b27250
139980a72834
144ddb9cb39a
152a47c15353
hex180c71769c

103287977628 has 192 divisors, whose sum is σ = 278190194688. Its totient is φ = 29522183680.

The previous prime is 103287977519. The next prime is 103287977641. The reversal of 103287977628 is 826779782301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69459901 + ... + 69461387.

It is an arithmetic number, because the mean of its divisors is an integer number (1448907264).

Almost surely, 2103287977628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103287977628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139095097344).

103287977628 is an abundant number, since it is smaller than the sum of its proper divisors (174902217060).

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

103287977628 is a wasteful number, since it uses less digits than its factorization.

103287977628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 103287977628 in words is "one hundred three billion, two hundred eighty-seven million, nine hundred seventy-seven thousand, six hundred twenty-eight".