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30402432023131 = 74343204574733
BaseRepresentation
bin1101110100110100111100…
…01010010011101001011011
310222122102222202112201000201
412322122132022103221123
512441103140044220011
6144354403502043031
76255334415216530
oct672323612235133
9128572882481021
1030402432023131
119761665318423
1234b0240b79477
1313c6c2489901c
147716b2546d87
1537ac84e71cc1
hex1ba69e293a5b

30402432023131 has 4 divisors (see below), whose sum is σ = 34745636597872. Its totient is φ = 26059227448392.

The previous prime is 30402432023081. The next prime is 30402432023213. The reversal of 30402432023131 is 13132023420403.

It is a happy number.

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 30402432023131 - 217 = 30402431892059 is a prime.

It is a super-2 number, since 2×304024320231312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30402432023131.

It is not an unprimeable number, because it can be changed into a prime (30402432024131) 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, 2171602287360 + ... + 2171602287373.

It is an arithmetic number, because the mean of its divisors is an integer number (8686409149468).

Almost surely, 230402432023131 is an apocalyptic number.

30402432023131 is a deficient number, since it is larger than the sum of its proper divisors (4343204574741).

30402432023131 is an equidigital number, since it uses as much as digits as its factorization.

30402432023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343204574740.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 30402432023131 its reverse (13132023420403), we get a palindrome (43534455443534).

The spelling of 30402432023131 in words is "thirty trillion, four hundred two billion, four hundred thirty-two million, twenty-three thousand, one hundred thirty-one".

Divisors: 1 7 4343204574733 30402432023131