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42024431420 = 22519313567439
BaseRepresentation
bin100111001000110110…
…011110111100111100
311000110202101022022222
4213020312132330330
51142031223301140
631150013224512
73015255526136
oct471066367474
9130422338288
1042024431420
1116905772364
128189a92138
133c6960208a
1420693c6056
15115e5c35b5
hex9c8d9ef3c

42024431420 has 48 divisors (see below), whose sum is σ = 95892787200. Its totient is φ = 15411332160.

The previous prime is 42024431413. The next prime is 42024431461. The reversal of 42024431420 is 2413442024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42024431420.

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, 1771940 + ... + 1795499.

It is an arithmetic number, because the mean of its divisors is an integer number (1997766400).

Almost surely, 242024431420 is an apocalyptic number.

It is an amenable number.

42024431420 is an abundant number, since it is smaller than the sum of its proper divisors (53868355780).

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

42024431420 is a wasteful number, since it uses less digits than its factorization.

42024431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567498 (or 3567496 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 42024431420 its reverse (2413442024), we get a palindrome (44437873444).

The spelling of 42024431420 in words is "forty-two billion, twenty-four million, four hundred thirty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 31 38 62 76 95 124 155 190 310 380 589 620 1178 2356 2945 5890 11780 3567439 7134878 14269756 17837195 35674390 67781341 71348780 110590609 135562682 221181218 271125364 338906705 442362436 552953045 677813410 1105906090 1355626820 2101221571 2211812180 4202443142 8404886284 10506107855 21012215710 42024431420