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60768397281 = 3194722683239
BaseRepresentation
bin111000100110000101…
…000010011111100001
312210212001110102122210
4320212011002133201
51443423202203111
643525553352333
74250616566004
oct704605023741
9183761412583
1060768397281
11238541a3339
12b93b2686a9
1359659c6737
142d2695353b
1518a9e360a6
hexe261427e1

60768397281 has 16 divisors (see below), whose sum is σ = 87103641600. Its totient is φ = 37563442128.

The previous prime is 60768397273. The next prime is 60768397289. The reversal of 60768397281 is 18279386706.

It is an interprime number because it is at equal distance from previous prime (60768397273) and next prime (60768397289).

It is not a de Polignac number, because 60768397281 - 23 = 60768397273 is a prime.

It is a super-2 number, since 2×607683972812 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (60768397289) 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, 11338941 + ... + 11344298.

It is an arithmetic number, because the mean of its divisors is an integer number (5443977600).

Almost surely, 260768397281 is an apocalyptic number.

It is an amenable number.

60768397281 is a deficient number, since it is larger than the sum of its proper divisors (26335244319).

60768397281 is a wasteful number, since it uses less digits than its factorization.

60768397281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22683308.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 60768397281 in words is "sixty billion, seven hundred sixty-eight million, three hundred ninety-seven thousand, two hundred eighty-one".

Divisors: 1 3 19 47 57 141 893 2679 22683239 68049717 430981541 1066112233 1292944623 3198336699 20256132427 60768397281