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23532151231 = 61911423461
BaseRepresentation
bin10101111010101000…
…000010000110111111
32020201222220010211201
4111322220002012333
5341143212314411
614451023400331
71462101661621
oct257250020677
966658803751
1023532151231
119a86316576
124688a530a7
1322b03c0454
1411d3452c11
1592adc93c1
hex57aa021bf

23532151231 has 8 divisors (see below), whose sum is σ = 23944235328. Its totient is φ = 23120916000.

The previous prime is 23532151217. The next prime is 23532151241. The reversal of 23532151231 is 13215123532.

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

It is a cyclic number.

It is not a de Polignac number, because 23532151231 - 213 = 23532143039 is a prime.

It is a super-2 number, since 2×235321512312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23532151231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23532151241) 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, 156160 + ... + 267301.

It is an arithmetic number, because the mean of its divisors is an integer number (2993029416).

Almost surely, 223532151231 is an apocalyptic number.

23532151231 is a deficient number, since it is larger than the sum of its proper divisors (412084097).

23532151231 is an equidigital number, since it uses as much as digits as its factorization.

23532151231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424433.

The product of its digits is 5400, while the sum is 28.

Adding to 23532151231 its reverse (13215123532), we get a palindrome (36747274763).

The spelling of 23532151231 in words is "twenty-three billion, five hundred thirty-two million, one hundred fifty-one thousand, two hundred thirty-one".

Divisors: 1 61 911 55571 423461 25831121 385772971 23532151231