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38881590229 = 2341313131731
BaseRepresentation
bin100100001101100001…
…011111101111010101
310201100201120102201101
4210031201133233111
51114112141341404
625510103230101
72544344030626
oct441541375725
9121321512641
1038881590229
111554270a249
127651448331
133888457231
141c4bc39a4d
1510287162a4
hex90d85fbd5

38881590229 has 16 divisors (see below), whose sum is σ = 41694758784. Its totient is φ = 36167788800.

The previous prime is 38881590227. The next prime is 38881590263. The reversal of 38881590229 is 92209518883.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 38881590229 - 21 = 38881590227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38881590229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38881590221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229294 + ... + 361024.

It is an arithmetic number, because the mean of its divisors is an integer number (2605922424).

Almost surely, 238881590229 is an apocalyptic number.

It is an amenable number.

38881590229 is a deficient number, since it is larger than the sum of its proper divisors (2813168555).

38881590229 is a wasteful number, since it uses less digits than its factorization.

38881590229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132108.

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 38881590229 in words is "thirty-eight billion, eight hundred eighty-one million, five hundred ninety thousand, two hundred twenty-nine".

Divisors: 1 23 41 313 943 7199 12833 131731 295159 3029813 5400971 41231803 124222333 948331469 1690503923 38881590229