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20311101302 = 2349127722787
BaseRepresentation
bin10010111010101000…
…101100111101110110
31221102111220212000012
4102322220230331312
5313044120220202
613155241220222
71316220340532
oct227250547566
957374825005
1020311101302
1186830a6038
123b2a191672
131bb8c9164b
14da9748bc2
157dd21e152
hex4baa2cf76

20311101302 has 16 divisors (see below), whose sum is σ = 30579217200. Its totient is φ = 10118077728.

The previous prime is 20311101301. The next prime is 20311101323. The reversal of 20311101302 is 20310111302.

It is a super-2 number, since 2×203111013022 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311101301) 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, 879953 + ... + 902739.

It is an arithmetic number, because the mean of its divisors is an integer number (1911201075).

Almost surely, 220311101302 is an apocalyptic number.

20311101302 is a deficient number, since it is larger than the sum of its proper divisors (10268115898).

20311101302 is a wasteful number, since it uses less digits than its factorization.

20311101302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24415.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20311101302 its reverse (20310111302), we get a palindrome (40621212604).

The spelling of 20311101302 in words is "twenty billion, three hundred eleven million, one hundred one thousand, three hundred two".

Divisors: 1 2 349 698 1277 2554 22787 45574 445673 891346 7952663 15905326 29098999 58197998 10155550651 20311101302