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31013032330030 = 2517646717574409
BaseRepresentation
bin1110000110100110010001…
…10001101000001100101110
311001210211001112202010220011
413003103020301220030232
513031104142234030110
6145543105041443434
76350421565204432
oct703231061501456
9131724045663804
1031013032330030
11997760a273433
12358a64994057a
13143c6936b917a
147930785769c2
1538bac072b48a
hex1c34c8c6832e

31013032330030 has 16 divisors (see below), whose sum is σ = 55823777709840. Its totient is φ = 12405141928512.

The previous prime is 31013032330013. The next prime is 31013032330031. The reversal of 31013032330030 is 3003323031013.

It is a junction number, because it is equal to n+sod(n) for n = 31013032329983 and 31013032330010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013032330031) 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, 7022535 + ... + 10551874.

It is an arithmetic number, because the mean of its divisors is an integer number (3488986106865).

Almost surely, 231013032330030 is an apocalyptic number.

31013032330030 is a deficient number, since it is larger than the sum of its proper divisors (24810745379810).

31013032330030 is a wasteful number, since it uses less digits than its factorization.

31013032330030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17750883.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 31013032330030 its reverse (3003323031013), we get a palindrome (34016355361043).

The spelling of 31013032330030 in words is "thirty-one trillion, thirteen billion, thirty-two million, three hundred thirty thousand, thirty".

Divisors: 1 2 5 10 176467 352934 882335 1764670 17574409 35148818 87872045 175744090 3101303233003 6202606466006 15506516165015 31013032330030