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68152439498 = 21113238295243
BaseRepresentation
bin111111011110001100…
…111011001011001010
320111220122211122022212
4333132030323023022
52104034011030443
651150411145122
74631611114613
oct773614731312
9214818748285
1068152439498
11269a3303570
12112601451a2
1365717446a0
1434274bcc0a
151b8d310618
hexfde33b2ca

68152439498 has 16 divisors (see below), whose sum is σ = 120100802976. Its totient is φ = 28595429040.

The previous prime is 68152439471. The next prime is 68152439549. The reversal of 68152439498 is 89493425186.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119147336 + ... + 119147907.

It is an arithmetic number, because the mean of its divisors is an integer number (7506300186).

Almost surely, 268152439498 is an apocalyptic number.

68152439498 is a deficient number, since it is larger than the sum of its proper divisors (51948363478).

68152439498 is a wasteful number, since it uses less digits than its factorization.

68152439498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238295269.

The product of its digits is 14929920, while the sum is 59.

The spelling of 68152439498 in words is "sixty-eight billion, one hundred fifty-two million, four hundred thirty-nine thousand, four hundred ninety-eight".

Divisors: 1 2 11 13 22 26 143 286 238295243 476590486 2621247673 3097838159 5242495346 6195676318 34076219749 68152439498