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10220155031 = 29973633187
BaseRepresentation
bin10011000010010101…
…10011000010010111
3222101021000200001102
421201022303002113
5131412324430111
64410045220315
7511156612232
oct114112630227
928337020042
1010220155031
114375013819
121b9286169b
13c6b4b0618
146cd4b0419
153ec39913b
hex2612b3097

10220155031 has 8 divisors (see below), whose sum is σ = 10681572720. Its totient is φ = 9766003968.

The previous prime is 10220155021. The next prime is 10220155061. The reversal of 10220155031 is 13055102201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10220155031 is a prime.

It is a super-2 number, since 2×102201550312 (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 = 10220154994 and 10220155012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220155021) 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, 1813781 + ... + 1819406.

It is an arithmetic number, because the mean of its divisors is an integer number (1335196590).

Almost surely, 210220155031 is an apocalyptic number.

10220155031 is a deficient number, since it is larger than the sum of its proper divisors (461417689).

10220155031 is an equidigital number, since it uses as much as digits as its factorization.

10220155031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633313.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 10220155031 its reverse (13055102201), we get a palindrome (23275257232).

The spelling of 10220155031 in words is "ten billion, two hundred twenty million, one hundred fifty-five thousand, thirty-one".

Divisors: 1 29 97 2813 3633187 105362423 352419139 10220155031