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30353146145 = 571764379337
BaseRepresentation
bin11100010001001100…
…000100000100100001
32220100100210120210222
4130101030010010201
5444130401134040
621535525132425
72123115325310
oct342114040441
986310716728
1030353146145
1111966617a53
125a7125a115
132b295b030a
14167d2d4277
15bc9b34bb5
hex711304121

30353146145 has 32 divisors (see below), whose sum is σ = 44144932608. Its totient is φ = 19558545408.

The previous prime is 30353146129. The next prime is 30353146147. The reversal of 30353146145 is 54164135303.

It is a cyclic number.

It is not a de Polignac number, because 30353146145 - 24 = 30353146129 is a prime.

It is a super-2 number, since 2×303531461452 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (30353146147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342917 + ... + 422253.

It is an arithmetic number, because the mean of its divisors is an integer number (1379529144).

Almost surely, 230353146145 is an apocalyptic number.

30353146145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30353146145 is a deficient number, since it is larger than the sum of its proper divisors (13791786463).

30353146145 is a wasteful number, since it uses less digits than its factorization.

30353146145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80009.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 30353146145 in words is "thirty billion, three hundred fifty-three million, one hundred forty-six thousand, one hundred forty-five".

Divisors: 1 5 7 17 35 85 119 595 643 3215 4501 10931 22505 54655 76517 79337 382585 396685 555359 1348729 2776795 6743645 9441103 47205515 51013691 255068455 357095837 867232747 1785479185 4336163735 6070629229 30353146145