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61448615050 = 2525973285343
BaseRepresentation
bin111001001110100111…
…110111010010001010
312212121110102002000111
4321032213313102022
52001321321140200
644121253024534
74303516416124
oct711647672212
9185543362014
1061448615050
1124073160a89
12baab02514a
135a438ca864
142d8d01c214
1518e99ec0ba
hexe4e9f748a

61448615050 has 48 divisors (see below), whose sum is σ = 117824244480. Its totient is φ = 23831763840.

The previous prime is 61448615017. The next prime is 61448615051. The reversal of 61448615050 is 5051684416.

It is a junction number, because it is equal to n+sod(n) for n = 61448614994 and 61448615012.

It is not an unprimeable number, because it can be changed into a prime (61448615051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72679 + ... + 358021.

It is an arithmetic number, because the mean of its divisors is an integer number (2454671760).

Almost surely, 261448615050 is an apocalyptic number.

61448615050 is a deficient number, since it is larger than the sum of its proper divisors (56375629430).

61448615050 is a wasteful number, since it uses less digits than its factorization.

61448615050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285487 (or 285482 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 61448615050 in words is "sixty-one billion, four hundred forty-eight million, six hundred fifteen thousand, fifty".

Divisors: 1 2 5 10 25 50 59 73 118 146 295 365 590 730 1475 1825 2950 3650 4307 8614 21535 43070 107675 215350 285343 570686 1426715 2853430 7133575 14267150 16835237 20830039 33670474 41660078 84176185 104150195 168352370 208300390 420880925 520750975 841761850 1041501950 1228972301 2457944602 6144861505 12289723010 30724307525 61448615050