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99122023 = 7111399023
BaseRepresentation
bin1011110100001…
…11101101100111
320220111220212001
411322013231213
5200333401043
613500310131
72312344330
oct572075547
9226456761
1099122023
1150a51930
1229242347
13176c6cb0
14d243287
158a7e74d
hex5e87b67

99122023 has 16 divisors (see below), whose sum is σ = 133088256. Its totient is φ = 71295840.

The previous prime is 99122021. The next prime is 99122027. The reversal of 99122023 is 32022199.

It is not a de Polignac number, because 99122023 - 21 = 99122021 is a prime.

It is a super-2 number, since 2×991220232 = 19650350887225058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99121982 and 99122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99122021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48511 + ... + 50512.

It is an arithmetic number, because the mean of its divisors is an integer number (8318016).

Almost surely, 299122023 is an apocalyptic number.

99122023 is a deficient number, since it is larger than the sum of its proper divisors (33966233).

99122023 is a wasteful number, since it uses less digits than its factorization.

99122023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99054.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 99122023 is about 9956.0043692236. The cubic root of 99122023 is about 462.7964856217.

It can be divided in two parts, 9912 and 2023, that added together give a triangular number (11935 = T154).

The spelling of 99122023 in words is "ninety-nine million, one hundred twenty-two thousand, twenty-three".

Divisors: 1 7 11 13 77 91 143 1001 99023 693161 1089253 1287299 7624771 9011093 14160289 99122023