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30770526 = 235128421
BaseRepresentation
bin111010101100…
…0010101011110
32010220022020010
41311120111132
530334124101
63015304050
7522354663
oct165302536
963808203
1030770526
1116407396
12a37b026
1364b4917
14412da6a
152a7c2d6
hex1d5855e

30770526 has 8 divisors (see below), whose sum is σ = 61541064. Its totient is φ = 10256840.

The previous prime is 30770521. The next prime is 30770539. The reversal of 30770526 is 62507703.

It is a sphenic number, since it is the product of 3 distinct primes.

30770526 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 30770493 and 30770502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30770521) 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, 2564205 + ... + 2564216.

It is an arithmetic number, because the mean of its divisors is an integer number (7692633).

Almost surely, 230770526 is an apocalyptic number.

30770526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30770526 is a wasteful number, since it uses less digits than its factorization.

30770526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128426.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 30770526 is about 5547.1187115475. The cubic root of 30770526 is about 313.3610208922.

The spelling of 30770526 in words is "thirty million, seven hundred seventy thousand, five hundred twenty-six".

Divisors: 1 2 3 6 5128421 10256842 15385263 30770526