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2139726677 = 111801108007
BaseRepresentation
bin111111110001001…
…1010001101010101
312112010021101012012
41333202122031111
513340232223202
6552153434005
7104011243124
oct17742321525
95463241165
102139726677
119a8902360
124b870b905
132813ba17a
1416426babb
15c7cb3152
hex7f89a355

2139726677 has 8 divisors (see below), whose sum is σ = 2335564992. Its totient is φ = 1944108000.

The previous prime is 2139726649. The next prime is 2139726689. The reversal of 2139726677 is 7766279312.

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 2139726677 - 218 = 2139464533 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 (2139726647) 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, 34193 + ... + 73814.

It is an arithmetic number, because the mean of its divisors is an integer number (291945624).

Almost surely, 22139726677 is an apocalyptic number.

It is an amenable number.

2139726677 is a deficient number, since it is larger than the sum of its proper divisors (195838315).

2139726677 is a wasteful number, since it uses less digits than its factorization.

2139726677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109819.

The product of its digits is 1333584, while the sum is 50.

The square root of 2139726677 is about 46257.1797346098. The cubic root of 2139726677 is about 1288.6038772664.

The spelling of 2139726677 in words is "two billion, one hundred thirty-nine million, seven hundred twenty-six thousand, six hundred seventy-seven".

Divisors: 1 11 1801 19811 108007 1188077 194520607 2139726677