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42465131651 = 192818179309
BaseRepresentation
bin100111100011000111…
…100111110010000011
311001121110122012101202
4213203013213302003
51143432033203101
631301435051415
73032216443355
oct474307476203
9131543565352
1042465131651
1117011506a28
1282915a0b6b
1340099c3b47
1420abb430d5
15118812636b
hex9e31e7c83

42465131651 has 8 divisors (see below), whose sum is σ = 44702288400. Its totient is φ = 40228189920.

The previous prime is 42465131641. The next prime is 42465131659. The reversal of 42465131651 is 15613156424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42465131651 - 226 = 42398022787 is a prime.

It is a super-2 number, since 2×424651316512 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42465131659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495785 + ... + 575093.

It is an arithmetic number, because the mean of its divisors is an integer number (5587786050).

Almost surely, 242465131651 is an apocalyptic number.

42465131651 is a deficient number, since it is larger than the sum of its proper divisors (2237156749).

42465131651 is a wasteful number, since it uses less digits than its factorization.

42465131651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107509.

The product of its digits is 86400, while the sum is 38.

The spelling of 42465131651 in words is "forty-two billion, four hundred sixty-five million, one hundred thirty-one thousand, six hundred fifty-one".

Divisors: 1 19 28181 79309 535439 1506871 2235006929 42465131651