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47921201078400 = 273752132941443
BaseRepresentation
bin10101110010101100001100…
…01010101110000010000000
320021200012222220020110000000
422321112012022232002000
522240120104434002100
6245530410150000000
713044123015220536
oct1271260612560200
9207605886213000
1047921201078400
11142a62a3784201
12545b549346000
132097c46b380a0
14bb9581710156
15581818d63900
hex2b95862ae080

47921201078400 has 3072 divisors, whose sum is σ = 203075377344000. Its totient is φ = 11086361395200.

The previous prime is 47921201078393. The next prime is 47921201078453. The reversal of 47921201078400 is 487010212974.

47921201078400 is a `hidden beast` number, since 47 + 9 + 2 + 120 + 10 + 78 + 400 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 108174268579 + ... + 108174269021.

Almost surely, 247921201078400 is an apocalyptic number.

47921201078400 is a gapful number since it is divisible by the number (40) 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 47921201078400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101537688672000).

47921201078400 is an abundant number, since it is smaller than the sum of its proper divisors (155154176265600).

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

47921201078400 is a wasteful number, since it uses less digits than its factorization.

47921201078400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 47921201078400 in words is "forty-seven trillion, nine hundred twenty-one billion, two hundred one million, seventy-eight thousand, four hundred".