Search a number
-
+
68258103157 = 733472694647
BaseRepresentation
bin111111100100011111…
…111111111101110101
320112012000122220121201
4333210133333331311
52104243033300112
651205104012501
74634333206126
oct774437777565
9215160586551
1068258103157
1126a47a13202
121128b601131
13658a5bc06a
14343754604d
151b97733257
hexfe47fff75

68258103157 has 8 divisors (see below), whose sum is σ = 69392575296. Its totient is φ = 67129021152.

The previous prime is 68258103077. The next prime is 68258103169. The reversal of 68258103157 is 75130185286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68258103157 - 223 = 68249714549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68258103187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1321993 + ... + 1372654.

It is an arithmetic number, because the mean of its divisors is an integer number (8674071912).

Almost surely, 268258103157 is an apocalyptic number.

It is an amenable number.

68258103157 is a deficient number, since it is larger than the sum of its proper divisors (1134472139).

68258103157 is a wasteful number, since it uses less digits than its factorization.

68258103157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695067.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 68258103157 in words is "sixty-eight billion, two hundred fifty-eight million, one hundred three thousand, one hundred fifty-seven".

Divisors: 1 73 347 25331 2694647 196709231 935042509 68258103157