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40642510467 = 3131042115653
BaseRepresentation
bin100101110110011110…
…110111111010000011
310212220110001110011110
4211312132313322003
51131213440313332
630400530014403
72636105432106
oct456636677203
9125813043143
1040642510467
1116266701729
127a63117403
133aa9213580
141d77a5c73d
1510cd1004cc
hex9767b7e83

40642510467 has 8 divisors (see below), whose sum is σ = 58358476624. Its totient is φ = 25010775648.

The previous prime is 40642510459. The next prime is 40642510477. The reversal of 40642510467 is 76401524604.

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

It is not a de Polignac number, because 40642510467 - 23 = 40642510459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1042115653 = 40642510467 / (4 + 0 + 6 + 4 + 2 + 5 + 1 + 0 + 4 + 6 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40642510417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521057788 + ... + 521057865.

It is an arithmetic number, because the mean of its divisors is an integer number (7294809578).

Almost surely, 240642510467 is an apocalyptic number.

40642510467 is a deficient number, since it is larger than the sum of its proper divisors (17715966157).

40642510467 is a wasteful number, since it uses less digits than its factorization.

40642510467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042115669.

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 40642510467 in words is "forty billion, six hundred forty-two million, five hundred ten thousand, four hundred sixty-seven".

Divisors: 1 3 13 39 1042115653 3126346959 13547503489 40642510467