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61501341044 = 221113977110051
BaseRepresentation
bin111001010001110000…
…111111110101110100
312212202010121211111002
4321101300333311310
52001423320403134
644130415102432
74305026526203
oct712160776564
9185663554432
1061501341044
112409a9a3890
12bb04811a18
135a517cb980
142d9602523a
1518ee46487e
hexe51c3fd74

61501341044 has 48 divisors (see below), whose sum is σ = 126573886656. Its totient is φ = 25778112000.

The previous prime is 61501341023. The next prime is 61501341047. The reversal of 61501341044 is 44014310516.

It is a junction number, because it is equal to n+sod(n) for n = 61501340998 and 61501341016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61501341047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503819 + ... + 613869.

It is an arithmetic number, because the mean of its divisors is an integer number (2636955972).

Almost surely, 261501341044 is an apocalyptic number.

It is an amenable number.

61501341044 is an abundant number, since it is smaller than the sum of its proper divisors (65072545612).

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

61501341044 is a wasteful number, since it uses less digits than its factorization.

61501341044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111056 (or 111054 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 61501341044 in words is "sixty-one billion, five hundred one million, three hundred forty-one thousand, forty-four".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 977 1954 3908 10747 12701 21494 25402 42988 50804 110051 139711 220102 279422 440204 558844 1210561 1430663 2421122 2861326 4842244 5722652 15737293 31474586 62949172 107519827 215039654 430079308 1182718097 1397757751 2365436194 2795515502 4730872388 5591031004 15375335261 30750670522 61501341044