Search a number
-
+
68587417602 = 234113312331
BaseRepresentation
bin111111111000001000…
…001111000000000010
320120000222022211010000
4333320020033000002
52110431334330402
651301510220430
74645442300424
oct777010170002
9216028284100
1068587417602
11270a689a000
1211361954716
1366108b1a92
14346918a814
151bb65d2c1c
hexff820f002

68587417602 has 240 divisors, whose sum is σ = 175200376032. Its totient is φ = 20052846000.

The previous prime is 68587417597. The next prime is 68587417669. The reversal of 68587417602 is 20671478586.

It is a super-2 number, since 2×685874176022 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 207212577 + ... + 207212907.

Almost surely, 268587417602 is an apocalyptic number.

68587417602 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 68587417602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87600188016).

68587417602 is an abundant number, since it is smaller than the sum of its proper divisors (106612958430).

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

68587417602 is a wasteful number, since it uses less digits than its factorization.

68587417602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 68587417602 in words is "sixty-eight billion, five hundred eighty-seven million, four hundred seventeen thousand, six hundred two".