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68613000 = 2335322871
BaseRepresentation
bin1000001011011…
…11001110001000
311210002220100020
410011233032020
5120031104000
610450340440
71462125621
oct405571610
9153086306
1068613000
1135803a65
121ab8a720
13112a4411
149180a48
156054ba0
hex416f388

68613000 has 64 divisors (see below), whose sum is σ = 214081920. Its totient is φ = 18296000.

The previous prime is 68612989. The next prime is 68613007. The reversal of 68613000 is 31686.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (68613007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8436 + ... + 14435.

It is an arithmetic number, because the mean of its divisors is an integer number (3345030).

Almost surely, 268613000 is an apocalyptic number.

68613000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68613000 is an abundant number, since it is smaller than the sum of its proper divisors (145468920).

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

68613000 is a wasteful number, since it uses less digits than its factorization.

68613000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22895 (or 22881 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 68613000 is about 8283.2964452566. The cubic root of 68613000 is about 409.3883403768.

Adding to 68613000 its reverse (31686), we get a palindrome (68644686).

The spelling of 68613000 in words is "sixty-eight million, six hundred thirteen thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 500 600 750 1000 1500 3000 22871 45742 68613 91484 114355 137226 182968 228710 274452 343065 457420 548904 571775 686130 914840 1143550 1372260 1715325 2287100 2744520 2858875 3430650 4574200 5717750 6861300 8576625 11435500 13722600 17153250 22871000 34306500 68613000