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434885091 = 31936720789
BaseRepresentation
bin11001111010111…
…101000111100011
31010022022110012020
4121322331013203
51342312310331
6111053032523
713530314364
oct3172750743
91108273166
10434885091
11203532673
12101785743
136c136c74
1441a85b6b
15282a4c96
hex19ebd1e3

434885091 has 16 divisors (see below), whose sum is σ = 612057600. Its totient is φ = 273902688.

The previous prime is 434885063. The next prime is 434885111. The reversal of 434885091 is 190588434.

It is not a de Polignac number, because 434885091 - 26 = 434885027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (434885021) 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, 10525 + ... + 31313.

It is an arithmetic number, because the mean of its divisors is an integer number (38253600).

Almost surely, 2434885091 is an apocalyptic number.

434885091 is a deficient number, since it is larger than the sum of its proper divisors (177172509).

434885091 is a wasteful number, since it uses less digits than its factorization.

434885091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21178.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 434885091 is about 20853.8987002431. The cubic root of 434885091 is about 757.6317617631.

The spelling of 434885091 in words is "four hundred thirty-four million, eight hundred eighty-five thousand, ninety-one".

Divisors: 1 3 19 57 367 1101 6973 20789 20919 62367 394991 1184973 7629563 22888689 144961697 434885091