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38958021353 = 89437730577
BaseRepresentation
bin100100010010000101…
…000011101011101001
310201120001101112111202
4210102011003223221
51114241223140403
625521433333545
72546262501116
oct442205035351
9121501345452
1038958021353
1115581873069
127672b672b5
13389b238054
141c5805390d
1510302b2688
hex912143ae9

38958021353 has 4 divisors (see below), whose sum is σ = 39395752020. Its totient is φ = 38520290688.

The previous prime is 38958021343. The next prime is 38958021359. The reversal of 38958021353 is 35312085983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35312085983 = 93193789257.

It can be written as a sum of positive squares in 2 ways, for example, as 22324244569 + 16633776784 = 149413^2 + 128972^2 .

It is a cyclic number.

It is not a de Polignac number, because 38958021353 - 210 = 38958020329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38958021298 and 38958021307.

It is not an unprimeable number, because it can be changed into a prime (38958021359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218865200 + ... + 218865377.

It is an arithmetic number, because the mean of its divisors is an integer number (9848938005).

Almost surely, 238958021353 is an apocalyptic number.

It is an amenable number.

38958021353 is a deficient number, since it is larger than the sum of its proper divisors (437730667).

38958021353 is an equidigital number, since it uses as much as digits as its factorization.

38958021353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437730666.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 38958021353 in words is "thirty-eight billion, nine hundred fifty-eight million, twenty-one thousand, three hundred fifty-three".

Divisors: 1 89 437730577 38958021353