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7038694421 = 113169201919
BaseRepresentation
bin1101000111000100…
…11111010000010101
3200011112112201112222
412203202133100111
5103403401210141
63122235352125
7336265625663
oct64342372025
920145481488
107038694421
112a92183330
1214452b2645
13882333455
144aab4dc33
152b2e0e14b
hex1a389f415

7038694421 has 8 divisors (see below), whose sum is σ = 7681036800. Its totient is φ = 6396762240.

The previous prime is 7038694409. The next prime is 7038694423. The reversal of 7038694421 is 1244968307.

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

It is not a de Polignac number, because 7038694421 - 214 = 7038678037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7038694423) 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, 66101 + ... + 135818.

It is an arithmetic number, because the mean of its divisors is an integer number (960129600).

Almost surely, 27038694421 is an apocalyptic number.

It is an amenable number.

7038694421 is a deficient number, since it is larger than the sum of its proper divisors (642342379).

7038694421 is a wasteful number, since it uses less digits than its factorization.

7038694421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205099.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 7038694421 is about 83896.9273632831. The cubic root of 7038694421 is about 1916.4494586606.

The spelling of 7038694421 in words is "seven billion, thirty-eight million, six hundred ninety-four thousand, four hundred twenty-one".

Divisors: 1 11 3169 34859 201919 2221109 639881311 7038694421