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30137553269 = 231310328403
BaseRepresentation
bin11100000100010101…
…101001000101110101
32212210100010022222122
4130010111221011311
5443210203201034
621502304205325
72114556655535
oct340425510565
985710108878
1030137553269
111186595491a
125a11009845
132ac3a26875
14165c8134c5
15bb5c4a62e
hex704569175

30137553269 has 4 divisors (see below), whose sum is σ = 31447881696. Its totient is φ = 28827224844.

The previous prime is 30137553227. The next prime is 30137553307. The reversal of 30137553269 is 96235573103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96235573103 = 473320332891.

It is a cyclic number.

It is not a de Polignac number, because 30137553269 - 224 = 30120776053 is a prime.

It is a super-2 number, since 2×301375532692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30137553869) 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, 655164179 + ... + 655164224.

It is an arithmetic number, because the mean of its divisors is an integer number (7861970424).

Almost surely, 230137553269 is an apocalyptic number.

It is an amenable number.

30137553269 is a deficient number, since it is larger than the sum of its proper divisors (1310328427).

30137553269 is a wasteful number, since it uses less digits than its factorization.

30137553269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310328426.

The product of its (nonzero) digits is 510300, while the sum is 44.

The spelling of 30137553269 in words is "thirty billion, one hundred thirty-seven million, five hundred fifty-three thousand, two hundred sixty-nine".

Divisors: 1 23 1310328403 30137553269