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421149386968 = 233719315834657
BaseRepresentation
bin1100010000011100111…
…01011010100011011000
31111021001121212112202021
412020032131122203120
523400003220340333
6521250124544224
742266321503222
oct6101635324330
91437047775667
10421149386968
11152676938902
12697560b2074
1330939198cbb
1416552da1412
15ae4d50382d
hex620e75a8d8

421149386968 has 64 divisors (see below), whose sum is σ = 815889317760. Its totient is φ = 203649417216.

The previous prime is 421149386939. The next prime is 421149387017. The reversal of 421149386968 is 869683941124.

It is a happy number.

It is a super-2 number, since 2×4211493869682 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90431296 + ... + 90435952.

It is an arithmetic number, because the mean of its divisors is an integer number (12748270590).

Almost surely, 2421149386968 is an apocalyptic number.

It is an amenable number.

421149386968 is a deficient number, since it is larger than the sum of its proper divisors (394739930792).

421149386968 is a wasteful number, since it uses less digits than its factorization.

421149386968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476 (or 6472 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 61.

The spelling of 421149386968 in words is "four hundred twenty-one billion, one hundred forty-nine million, three hundred eighty-six thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 37 74 148 193 296 386 772 1544 1583 3166 4657 6332 7141 9314 12664 14282 18628 28564 37256 57128 58571 117142 172309 234284 305519 344618 468568 611038 689236 898801 1222076 1378472 1797602 2444152 3595204 7190408 7372031 11304203 14744062 22608406 29488124 33255637 45216812 58976248 66511274 90433624 133022548 266045096 272765147 545530294 1091060588 1422801983 2182121176 2845603966 5691207932 11382415864 52643673371 105287346742 210574693484 421149386968