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1378197504000 = 21634533167
BaseRepresentation
bin10100000011100010111…
…110010000000000000000
311212202100221202020120000
4110003202332100000000
5140040022030112000
62533045111320000
7201400006331532
oct24034276200000
94782327666500
101378197504000
1149154361a359
121a312b680000
139cc6a977075
144a9c2b9b852
1525cb4046000
hex140e2f90000

1378197504000 has 1360 divisors, whose sum is σ = 5383633322496. Its totient is φ = 350355456000.

The previous prime is 1378197503981. The next prime is 1378197504001. The reversal of 1378197504000 is 4057918731.

1378197504000 is a `hidden beast` number, since 1 + 3 + 7 + 8 + 197 + 50 + 400 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378197504001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 20570111967 + ... + 20570112033.

Almost surely, 21378197504000 is an apocalyptic number.

1378197504000 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 1378197504000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2691816661248).

1378197504000 is an abundant number, since it is smaller than the sum of its proper divisors (4005435818496).

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

1378197504000 is an frugal number, since it uses more digits than its factorization.

1378197504000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 1378197504000 in words is "one trillion, three hundred seventy-eight billion, one hundred ninety-seven million, five hundred four thousand".