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3870235640628 = 2233731571289213
BaseRepresentation
bin111000010100011100000…
…001010100001100110100
3111200222202101011020111000
4320110130001110030310
51001402220311000003
612121543421243300
7546421022103510
oct70243401241464
914628671136430
103870235640628
1112623a3138865
125260b2103530
13220c669a9736
14d546b293140
156aa18b911a3
hex3851c054334

3870235640628 has 192 divisors, whose sum is σ = 11858051645440. Its totient is φ = 1068233443200.

The previous prime is 3870235640627. The next prime is 3870235640669. The reversal of 3870235640628 is 8260465320783.

3870235640628 is a `hidden beast` number, since 3 + 8 + 7 + 0 + 2 + 3 + 5 + 6 + 4 + 0 + 628 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870235640627) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13237350 + ... + 13526562.

Almost surely, 23870235640628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3870235640628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5929025822720).

3870235640628 is an abundant number, since it is smaller than the sum of its proper divisors (7987816004812).

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

3870235640628 is a wasteful number, since it uses less digits than its factorization.

3870235640628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289835 (or 289827 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 3870235640628 in words is "three trillion, eight hundred seventy billion, two hundred thirty-five million, six hundred forty thousand, six hundred twenty-eight".