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61912480413 = 3715740146829
BaseRepresentation
bin111001101010010001…
…010111101010011101
312220210210020212200010
4321222101113222131
52003244043333123
644235303153433
74321151254230
oct715221275235
9186723225603
1061912480413
1124290a87993
12bbba445879
135ab8a405c4
142dd4889417
1519255c8993
hexe6a457a9d

61912480413 has 32 divisors (see below), whose sum is σ = 95182536960. Its totient is φ = 35064806400.

The previous prime is 61912480391. The next prime is 61912480499. The reversal of 61912480413 is 31408421916.

It is not a de Polignac number, because 61912480413 - 26 = 61912480349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61912482413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1298683 + ... + 1345511.

It is an arithmetic number, because the mean of its divisors is an integer number (2974454280).

Almost surely, 261912480413 is an apocalyptic number.

It is an amenable number.

61912480413 is a deficient number, since it is larger than the sum of its proper divisors (33270056547).

61912480413 is a wasteful number, since it uses less digits than its factorization.

61912480413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47397.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 61912480413 in words is "sixty-one billion, nine hundred twelve million, four hundred eighty thousand, four hundred thirteen".

Divisors: 1 3 7 21 157 401 471 1099 1203 2807 3297 8421 46829 62957 140487 188871 327803 440699 983409 1322097 7352153 18778429 22056459 51465071 56335287 131449003 154395213 394347009 2948213353 8844640059 20637493471 61912480413