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420313130442 = 232187912427211
BaseRepresentation
bin1100001110111001001…
…11010110010111001010
31111011220100022022110100
412013130213112113022
523341300130133232
6521031133030230
742236515442442
oct6073447262712
91434810268410
10420313130442
11152287893a07
1269562025376
1330834b6045a
14164b3cb9122
15adeedb8c7c
hex61dc9d65ca

420313130442 has 24 divisors (see below), whose sum is σ = 911163183840. Its totient is φ = 140029802280.

The previous prime is 420313130381. The next prime is 420313130507. The reversal of 420313130442 is 244031313024.

420313130442 is a `hidden beast` number, since 4 + 2 + 0 + 313 + 1 + 304 + 42 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6179784 + ... + 6247427.

It is an arithmetic number, because the mean of its divisors is an integer number (37965132660).

Almost surely, 2420313130442 is an apocalyptic number.

420313130442 is an abundant number, since it is smaller than the sum of its proper divisors (490850053398).

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

420313130442 is a wasteful number, since it uses less digits than its factorization.

420313130442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12429098 (or 12429095 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 420313130442 its reverse (244031313024), we get a palindrome (664344443466).

The spelling of 420313130442 in words is "four hundred twenty billion, three hundred thirteen million, one hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 1879 3758 5637 11274 16911 33822 12427211 24854422 37281633 74563266 111844899 223689798 23350729469 46701458938 70052188407 140104376814 210156565221 420313130442