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1102332431 = 231671931487
BaseRepresentation
bin100000110110100…
…0100001000001111
32211211020021211002
41001231010020033
54224144114211
6301214450515
736213446114
oct10155041017
92754207732
101102332431
11516268742
12269203a3b
131474b9515
14a658890b
1566b9703b
hex41b4420f

1102332431 has 16 divisors (see below), whose sum is σ = 1163925504. Its totient is φ = 1041959424.

The previous prime is 1102332419. The next prime is 1102332449. The reversal of 1102332431 is 1342332011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1102332431 is a prime.

It is a super-2 number, since 2×11023324312 = 2430273576868739522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102332461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740570 + ... + 742056.

It is an arithmetic number, because the mean of its divisors is an integer number (72745344).

Almost surely, 21102332431 is an apocalyptic number.

1102332431 is a deficient number, since it is larger than the sum of its proper divisors (61593073).

1102332431 is a wasteful number, since it uses less digits than its factorization.

1102332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1102332431 is about 33201.3920039507. The cubic root of 1102332431 is about 1033.0092131450.

Adding to 1102332431 its reverse (1342332011), we get a palindrome (2444664442).

The spelling of 1102332431 in words is "one billion, one hundred two million, three hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 23 167 193 1487 3841 4439 32231 34201 248329 286991 741313 5711567 6600793 47927497 1102332431