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61115159435 = 5112348312379
BaseRepresentation
bin111000111010101111…
…110101001110001011
312211202012221202220112
4320322233311032023
52000130440100220
644024221544535
74262330166251
oct707257651613
9184665852815
1061115159435
1123a11a06930
12ba1741514b
1359bc7b7c45
142d5aa1a5d1
1518ca5d05c5
hexe3abf538b

61115159435 has 16 divisors (see below), whose sum is σ = 83483792640. Its totient is φ = 42514892640.

The previous prime is 61115159383. The next prime is 61115159491. The reversal of 61115159435 is 53495151116.

It is not a de Polignac number, because 61115159435 - 210 = 61115158411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61115159392 and 61115159401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24154925 + ... + 24157454.

It is an arithmetic number, because the mean of its divisors is an integer number (5217737040).

Almost surely, 261115159435 is an apocalyptic number.

61115159435 is a deficient number, since it is larger than the sum of its proper divisors (22368633205).

61115159435 is a wasteful number, since it uses less digits than its factorization.

61115159435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48312418.

The product of its digits is 81000, while the sum is 41.

The spelling of 61115159435 in words is "sixty-one billion, one hundred fifteen million, one hundred fifty-nine thousand, four hundred thirty-five".

Divisors: 1 5 11 23 55 115 253 1265 48312379 241561895 531436169 1111184717 2657180845 5555923585 12223031887 61115159435