Search a number
-
+
49000077000031 = 12712131599119891
BaseRepresentation
bin10110010010000101110000…
…01011101111110101011111
320102111100202121121211211211
423021002320023233311133
522410304124203000111
6252114154041125251
713215065405232013
oct1311027013576537
9212440677554754
1049000077000031
11146818a8045493
1255b4662789827
1321458c23a71b1
14c1588b4c6543
1559e910058521
hex2c90b82efd5f

49000077000031 has 16 divisors (see below), whose sum is σ = 49432194162688. Its totient is φ = 48568692463200.

The previous prime is 49000077000019. The next prime is 49000077000037. The reversal of 49000077000031 is 13000077000094.

It is a cyclic number.

It is not a de Polignac number, because 49000077000031 - 223 = 49000068611423 is a prime.

It is a super-2 number, since 2×490000770000312 (a number of 28 digits) contains 22 as substring.

It is the 7000006-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49000076999957 and 49000077000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49000077000037) by changing a digit.

It is a nontrivial repunit in base 7000005.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2463419596 + ... + 2463439486.

It is an arithmetic number, because the mean of its divisors is an integer number (3089512135168).

Almost surely, 249000077000031 is an apocalyptic number.

49000077000031 is a deficient number, since it is larger than the sum of its proper divisors (432117162657).

49000077000031 is a wasteful number, since it uses less digits than its factorization.

49000077000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37222.

The product of its (nonzero) digits is 5292, while the sum is 31.

The spelling of 49000077000031 in words is "forty-nine trillion, seventy-seven million, thirty-one", and thus it is an aban number and an uban number.

Divisors: 1 127 1213 15991 19891 154051 2030857 2526157 19397083 24127783 318076981 2463429541 3064228441 40395776587 385827377953 49000077000031