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421656348804 = 22335138029067
BaseRepresentation
bin1100010001011001010…
…11010100100010000100
31111022100221210212122120
412020230223110202010
523402023011130204
6521412314525540
742315015554115
oct6105453244204
91438327725576
10421656348804
1115290701a829
1269877a368b0
13309ba21ab12
14165a044a20c
15ae7cc946d9

421656348804 has 12 divisors (see below), whose sum is σ = 983864813904. Its totient is φ = 140552116264.

The previous prime is 421656348677. The next prime is 421656348811. The reversal of 421656348804 is 408843656124.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17569014522 + ... + 17569014545.

It is an arithmetic number, because the mean of its divisors is an integer number (81988734492).

Almost surely, 2421656348804 is an apocalyptic number.

It is an amenable number.

421656348804 is an abundant number, since it is smaller than the sum of its proper divisors (562208465100).

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

421656348804 is a wasteful number, since it uses less digits than its factorization.

421656348804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35138029074 (or 35138029072 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 51.

The spelling of 421656348804 in words is "four hundred twenty-one billion, six hundred fifty-six million, three hundred forty-eight thousand, eight hundred four".