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61256495076 = 22373731362969
BaseRepresentation
bin111001000011001010…
…111110111111100100
312212010001220100221220
4321003022332333210
52000423130320301
644050231140340
74265664421440
oct710312767744
9185101810856
1061256495076
1123a84770447
12ba568146b0
135a12b721ba
142d716cb820
1518d7bec936
hexe432befe4

61256495076 has 96 divisors (see below), whose sum is σ = 168304200960. Its totient is φ = 16974157824.

The previous prime is 61256495023. The next prime is 61256495081. The reversal of 61256495076 is 67059465216.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 941320 + ... + 1004288.

It is an arithmetic number, because the mean of its divisors is an integer number (1753168760).

Almost surely, 261256495076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61256495076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84152100480).

61256495076 is an abundant number, since it is smaller than the sum of its proper divisors (107047705884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61256495076 is a wasteful number, since it uses less digits than its factorization.

61256495076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63333 (or 63331 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 61256495076 in words is "sixty-one billion, two hundred fifty-six million, four hundred ninety-five thousand, seventy-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 111 148 222 259 313 444 518 626 777 939 1036 1252 1554 1878 2191 3108 3756 4382 6573 8764 11581 13146 23162 26292 34743 46324 62969 69486 81067 125938 138972 162134 188907 243201 251876 324268 377814 440783 486402 755628 881566 972804 1322349 1763132 2329853 2644698 4659706 5289396 6989559 9319412 13979118 16308971 19709297 27958236 32617942 39418594 48926913 59127891 65235884 78837188 97853826 118255782 137965079 195707652 236511564 275930158 413895237 551860316 729243989 827790474 1458487978 1655580948 2187731967 2916975956 4375463934 5104707923 8750927868 10209415846 15314123769 20418831692 30628247538 61256495076