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30232302320 = 2451137799091
BaseRepresentation
bin11100001001111111…
…000101001011110000
32220000221102002020202
4130021333011023300
5443403432133240
621515531054332
72120120221043
oct341177051360
986027362222
1030232302320
111190438a220
125a388a13a8
132b0a54c2ac
14166b238c5a
15bbe214315
hex709fc52f0

30232302320 has 80 divisors (see below), whose sum is σ = 76708840320. Its totient is φ = 10989446400.

The previous prime is 30232302319. The next prime is 30232302323. The reversal of 30232302320 is 2320323203.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30232302292 and 30232302301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30232302323) 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, 3320975 + ... + 3330065.

It is an arithmetic number, because the mean of its divisors is an integer number (958860504).

Almost surely, 230232302320 is an apocalyptic number.

It is an amenable number.

30232302320 is an abundant number, since it is smaller than the sum of its proper divisors (46476538000).

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

30232302320 is a wasteful number, since it uses less digits than its factorization.

30232302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894 (or 12888 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 30232302320 its reverse (2320323203), we get a palindrome (32552625523).

The spelling of 30232302320 in words is "thirty billion, two hundred thirty-two million, three hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 3779 7558 9091 15116 18182 18895 30232 36364 37790 41569 45455 60464 72728 75580 83138 90910 100001 145456 151160 166276 181820 200002 207845 302320 332552 363640 400004 415690 500005 665104 727280 800008 831380 1000010 1600016 1662760 2000020 3325520 4000040 8000080 34354889 68709778 137419556 171774445 274839112 343548890 377903779 549678224 687097780 755807558 1374195560 1511615116 1889518895 2748391120 3023230232 3779037790 6046460464 7558075580 15116151160 30232302320