Search a number
-
+
1378787160660 = 2235713283389137
BaseRepresentation
bin10100000100000110000…
…111100111001001010100
311212210220001021220102120
4110010012013213021110
5140042224003120120
62533223413535540
7201420426331260
oct24040607471124
94783801256376
101378787160660
11491816453108
121a32750445b0
13a0032b90a30
144aa3b2110a0
1525ceabbe140
hex141061e7254

1378787160660 has 192 divisors, whose sum is σ = 4753243203072. Its totient is φ = 290802991104.

The previous prime is 1378787160659. The next prime is 1378787160677. The reversal of 1378787160660 is 660617878731.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 1378787160594 and 1378787160603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15423612 + ... + 15512748.

It is an arithmetic number, because the mean of its divisors is an integer number (24756475016).

Almost surely, 21378787160660 is an apocalyptic number.

1378787160660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378787160660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2376621601536).

1378787160660 is an abundant number, since it is smaller than the sum of its proper divisors (3374456042412).

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

1378787160660 is a wasteful number, since it uses less digits than its factorization.

1378787160660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92002 (or 92000 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 1378787160660 in words is "one trillion, three hundred seventy-eight billion, seven hundred eighty-seven million, one hundred sixty thousand, six hundred sixty".