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10642438029 = 328511244293
BaseRepresentation
bin10011110100101011…
…01011011110001101
31000110200121212102110
421322111223132031
5133243431004104
64520012214233
7524505142056
oct117225533615
930420555373
1010642438029
114571419233
12209016a379
131007b24512
1472d5d572d
154244aee89
hex27a56b78d

10642438029 has 8 divisors (see below), whose sum is σ = 14194905952. Its totient is φ = 7092464400.

The previous prime is 10642438021. The next prime is 10642438033. The reversal of 10642438029 is 92083424601.

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

It is not a de Polignac number, because 10642438029 - 23 = 10642438021 is a prime.

It is a super-2 number, since 2×106424380292 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642438021) 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, 613594 + ... + 630699.

It is an arithmetic number, because the mean of its divisors is an integer number (1774363244).

Almost surely, 210642438029 is an apocalyptic number.

It is an amenable number.

10642438029 is a deficient number, since it is larger than the sum of its proper divisors (3552467923).

10642438029 is a wasteful number, since it uses less digits than its factorization.

10642438029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247147.

The product of its (nonzero) digits is 82944, while the sum is 39.

It can be divided in two parts, 106424 and 38029, that added together give a triangular number (144453 = T537).

The spelling of 10642438029 in words is "ten billion, six hundred forty-two million, four hundred thirty-eight thousand, twenty-nine".

Divisors: 1 3 2851 8553 1244293 3732879 3547479343 10642438029