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122703429 = 340901143
BaseRepresentation
bin1110101000001…
…00111001000101
322112212222110110
413110010321011
5222403002204
620101543233
73016650642
oct724047105
9275788413
10122703429
11632989a2
1235114b19
131c5625a4
1412420dc9
15ab8b889
hex7504e45

122703429 has 4 divisors (see below), whose sum is σ = 163604576. Its totient is φ = 81802284.

The previous prime is 122703403. The next prime is 122703431. The reversal of 122703429 is 924307221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-122703429 is a prime.

It is a super-2 number, since 2×1227034292 = 30112262976716082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122703396 and 122703405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122703029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20450569 + ... + 20450574.

It is an arithmetic number, because the mean of its divisors is an integer number (40901144).

Almost surely, 2122703429 is an apocalyptic number.

It is an amenable number.

122703429 is a deficient number, since it is larger than the sum of its proper divisors (40901147).

122703429 is an equidigital number, since it uses as much as digits as its factorization.

122703429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40901146.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 122703429 is about 11077.1579838874. The cubic root of 122703429 is about 496.9189586993.

The spelling of 122703429 in words is "one hundred twenty-two million, seven hundred three thousand, four hundred twenty-nine".

Divisors: 1 3 40901143 122703429