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30720152310 = 2351397366943
BaseRepresentation
bin11100100111000100…
…000101001011110110
32221021221101102121220
4130213010011023312
51000403324333220
622040155251210
72135162662161
oct344704051366
987257342556
1030720152310
11120347a8131
125b54149b06
132b8763c023
1416b5d4aad8
15bebe7c540
hex7271052f6

30720152310 has 32 divisors (see below), whose sum is σ = 74258795520. Its totient is φ = 8133103968.

The previous prime is 30720152293. The next prime is 30720152363. The reversal of 30720152310 is 1325102703.

It is a super-2 number, since 2×307201523102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3679302 + ... + 3687641.

It is an arithmetic number, because the mean of its divisors is an integer number (2320587360).

Almost surely, 230720152310 is an apocalyptic number.

30720152310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30720152310 is an abundant number, since it is smaller than the sum of its proper divisors (43538643210).

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

30720152310 is a wasteful number, since it uses less digits than its factorization.

30720152310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7367092.

The product of its (nonzero) digits is 1260, while the sum is 24.

The spelling of 30720152310 in words is "thirty billion, seven hundred twenty million, one hundred fifty-two thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 139 278 417 695 834 1390 2085 4170 7366943 14733886 22100829 36834715 44201658 73669430 110504145 221008290 1024005077 2048010154 3072015231 5120025385 6144030462 10240050770 15360076155 30720152310