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15030352423 = 37340295851
BaseRepresentation
bin11011111111110000…
…01111101000100111
31102210111021000101101
431333320033220213
5221240232234143
610523240340531
71041315613312
oct157770175047
942714230341
1015030352423
116413273269
122ab5774747
131556c15578
14a28285979
155ce80cb4d
hex37fe0fa27

15030352423 has 4 divisors (see below), whose sum is σ = 15070648648. Its totient is φ = 14990056200.

The previous prime is 15030352411. The next prime is 15030352433. The reversal of 15030352423 is 32425303051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15030352423 - 29 = 15030351911 is a prime.

It is a super-2 number, since 2×150303524232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15030352391 and 15030352400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15030352433) 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, 20147553 + ... + 20148298.

It is an arithmetic number, because the mean of its divisors is an integer number (3767662162).

Almost surely, 215030352423 is an apocalyptic number.

15030352423 is a deficient number, since it is larger than the sum of its proper divisors (40296225).

15030352423 is an equidigital number, since it uses as much as digits as its factorization.

15030352423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40296224.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 15030352423 its reverse (32425303051), we get a palindrome (47455655474).

The spelling of 15030352423 in words is "fifteen billion, thirty million, three hundred fifty-two thousand, four hundred twenty-three".

Divisors: 1 373 40295851 15030352423