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30945203383157 = 719232670702129
BaseRepresentation
bin1110000100100111111011…
…10110101110101101110101
311001120022222102121122000122
413002103331312232231311
513024001234031230112
6145452010304021325
76342500662522640
oct702237566565565
9131508872548018
1030945203383157
11995087262a748
12357947a001845
131436173ca964b
1478da82024a57
15389e50a1a872
hex1c24fddaeb75

30945203383157 has 8 divisors (see below), whose sum is σ = 37227312340800. Its totient is φ = 25128435829824.

The previous prime is 30945203383147. The next prime is 30945203383229. The reversal of 30945203383157 is 75138330254903.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30945203383157 - 220 = 30945202334581 is a prime.

It is a super-2 number, since 2×309452033831572 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30945203383099 and 30945203383108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30945203383147) 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, 116335350932 + ... + 116335351197.

It is an arithmetic number, because the mean of its divisors is an integer number (4653414042600).

Almost surely, 230945203383157 is an apocalyptic number.

It is an amenable number.

30945203383157 is a deficient number, since it is larger than the sum of its proper divisors (6282108957643).

30945203383157 is a wasteful number, since it uses less digits than its factorization.

30945203383157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232670702155.

The product of its (nonzero) digits is 8164800, while the sum is 53.

The spelling of 30945203383157 in words is "thirty trillion, nine hundred forty-five billion, two hundred three million, three hundred eighty-three thousand, one hundred fifty-seven".

Divisors: 1 7 19 133 232670702129 1628694914903 4420743340451 30945203383157