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30678946340 = 2257219135331
BaseRepresentation
bin11100100100100110…
…111001001000100100
32221012001211221122212
4130210212321020210
51000312302240330
622032124142552
72134152512150
oct344446711044
987161757585
1030678946340
1112013513509
125b42397a58
132b7bc425b3
1416b06a2060
15be853d295
hex7249b9224

30678946340 has 24 divisors (see below), whose sum is σ = 73629471552. Its totient is φ = 10518495840.

The previous prime is 30678946211. The next prime is 30678946349. The reversal of 30678946340 is 4364987603.

It is not an unprimeable number, because it can be changed into a prime (30678946349) 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, 109567526 + ... + 109567805.

It is an arithmetic number, because the mean of its divisors is an integer number (3067894648).

Almost surely, 230678946340 is an apocalyptic number.

It is an amenable number.

30678946340 is an abundant number, since it is smaller than the sum of its proper divisors (42950525212).

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

30678946340 is a wasteful number, since it uses less digits than its factorization.

30678946340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219135347 (or 219135345 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 30678946340 in words is "thirty billion, six hundred seventy-eight million, nine hundred forty-six thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 219135331 438270662 876541324 1095676655 1533947317 2191353310 3067894634 4382706620 6135789268 7669736585 15339473170 30678946340