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61852131942 = 2378671310371
BaseRepresentation
bin111001100110101011…
…001010001001100110
312220122120200212010120
4321212223022021212
52003133121210232
644225305502410
74316516306166
oct714653121146
9186576625116
1061852131942
112425aa09217
12bba21a1a06
135aa93a0b53
142dca85a5a6
15192015792c
hexe66aca266

61852131942 has 16 divisors (see below), whose sum is σ = 123720082752. Its totient is φ = 20614740840.

The previous prime is 61852131923. The next prime is 61852131959. The reversal of 61852131942 is 24913125816.

61852131942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61852131894 and 61852131903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607984 + ... + 702387.

It is an arithmetic number, because the mean of its divisors is an integer number (7732505172).

Almost surely, 261852131942 is an apocalyptic number.

61852131942 is an abundant number, since it is smaller than the sum of its proper divisors (61867950810).

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

61852131942 is a wasteful number, since it uses less digits than its factorization.

61852131942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318243.

The product of its digits is 103680, while the sum is 42.

The spelling of 61852131942 in words is "sixty-one billion, eight hundred fifty-two million, one hundred thirty-one thousand, nine hundred forty-two".

Divisors: 1 2 3 6 7867 15734 23601 47202 1310371 2620742 3931113 7862226 10308688657 20617377314 30926065971 61852131942