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7423978601 = 137358713327
BaseRepresentation
bin1101110101000000…
…01110110001101001
3201011101112012002102
412322200032301221
5110201014303401
63224401343145
7351654530324
oct67240166151
921141465072
107423978601
11316a708006
121532337ab5
139140c1860
14505da37bb
152d6b6756b
hex1ba80ec69

7423978601 has 16 divisors (see below), whose sum is σ = 8118991104. Its totient is φ = 6747007104.

The previous prime is 7423978567. The next prime is 7423978613. The reversal of 7423978601 is 1068793247.

It is a cyclic number.

It is not a de Polignac number, because 7423978601 - 26 = 7423978537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7423978621) 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, 550400 + ... + 563726.

It is an arithmetic number, because the mean of its divisors is an integer number (507436944).

Almost surely, 27423978601 is an apocalyptic number.

It is an amenable number.

7423978601 is a deficient number, since it is larger than the sum of its proper divisors (695012503).

7423978601 is a wasteful number, since it uses less digits than its factorization.

7423978601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14000.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 7423978601 is about 86162.5127361082. The cubic root of 7423978601 is about 1950.7977100938.

The spelling of 7423978601 in words is "seven billion, four hundred twenty-three million, nine hundred seventy-eight thousand, six hundred one".

Divisors: 1 13 73 587 949 7631 13327 42851 173251 557063 972871 7822949 12647323 101698337 571075277 7423978601