Search a number
-
+
61051106501 = 72112910138671
BaseRepresentation
bin111000110110111011…
…011111010011000101
312211120202102112210122
4320312323133103011
52000013040402001
644014013031325
74260621562100
oct706673372305
9184522375718
1061051106501
1123989837a20
12b9b9a85545
1359ac44c2b8
142d52305737
1518c4b7bb1b
hexe36edf4c5

61051106501 has 48 divisors (see below), whose sum is σ = 80942042880. Its totient is φ = 45475920000.

The previous prime is 61051106497. The next prime is 61051106549. The reversal of 61051106501 is 10560115016.

It is not a de Polignac number, because 61051106501 - 22 = 61051106497 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 (61051106591) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1559396 + ... + 1598066.

It is an arithmetic number, because the mean of its divisors is an integer number (1686292560).

Almost surely, 261051106501 is an apocalyptic number.

It is an amenable number.

61051106501 is a deficient number, since it is larger than the sum of its proper divisors (19890936379).

61051106501 is a wasteful number, since it uses less digits than its factorization.

61051106501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38826 (or 38819 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 61051106501 in words is "sixty-one billion, fifty-one million, one hundred six thousand, five hundred one".

Divisors: 1 7 11 29 49 77 101 203 319 539 707 1111 1421 2233 2929 4949 7777 15631 20503 32219 38671 54439 143521 225533 270697 425381 1121459 1578731 1894879 2977667 3905771 7850213 12336049 20843669 27340397 42963481 54951491 86352343 113267359 191382779 300744367 604466401 792871513 1245940949 2105210569 5550100591 8721586643 61051106501