Search a number
-
+
30653831028 = 2237547338477
BaseRepresentation
bin11100100011000111…
…000101011101110100
32221010022120221221010
4130203013011131310
51000234340043103
622025425552220
72133426156522
oct344307053564
987108527833
1030653831028
1112000319a57
125b35aa5670
132b7698aa72
1416ab205312
15be622b903
hex7231c5774

30653831028 has 24 divisors (see below), whose sum is σ = 71535294432. Its totient is φ = 10216559584.

The previous prime is 30653831023. The next prime is 30653831041. The reversal of 30653831028 is 82013835603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30653831023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78675 + ... + 259802.

It is an arithmetic number, because the mean of its divisors is an integer number (2980637268).

Almost surely, 230653831028 is an apocalyptic number.

It is an amenable number.

30653831028 is an abundant number, since it is smaller than the sum of its proper divisors (40881463404).

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

30653831028 is a wasteful number, since it uses less digits than its factorization.

30653831028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346031 (or 346029 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 30653831028 in words is "thirty billion, six hundred fifty-three million, eight hundred thirty-one thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 7547 15094 22641 30188 45282 90564 338477 676954 1015431 1353908 2030862 4061724 2554485919 5108971838 7663457757 10217943676 15326915514 30653831028