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38405474297 = 471210767493
BaseRepresentation
bin100011110001001001…
…010000011111111001
310200010112200020102222
4203301021100133321
51112123300134142
625350534333425
72526503100551
oct436111203771
9120115606388
1038405474297
1115318986303
127539aba275
133810915428
141c04900161
15eeba19bd2
hex8f12507f9

38405474297 has 8 divisors (see below), whose sum is σ = 39226432896. Its totient is φ = 37584674992.

The previous prime is 38405474293. The next prime is 38405474351. The reversal of 38405474297 is 79247450483.

It is a happy number.

38405474297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38405474297 - 22 = 38405474293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38405474293) 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, 535283 + ... + 602775.

It is an arithmetic number, because the mean of its divisors is an integer number (4903304112).

Almost surely, 238405474297 is an apocalyptic number.

It is an amenable number.

38405474297 is a deficient number, since it is larger than the sum of its proper divisors (820958599).

38405474297 is a wasteful number, since it uses less digits than its factorization.

38405474297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79647.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 38405474297 in words is "thirty-eight billion, four hundred five million, four hundred seventy-four thousand, two hundred ninety-seven".

Divisors: 1 47 12107 67493 569029 3172171 817137751 38405474297