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30103943 = 295991733
BaseRepresentation
bin111001011010…
…1100110000111
32002122102211212
41302311212013
530201311233
62553122035
7513610412
oct162654607
962572755
1030103943
1115aa15a1
12a0b931b
1363103ac
143dd8b79
152999a48
hex1cb5987

30103943 has 8 divisors (see below), whose sum is σ = 31212000. Its totient is φ = 29000608.

The previous prime is 30103939. The next prime is 30103951. The reversal of 30103943 is 34930103.

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 30103943 - 22 = 30103939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30103933) 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, 16505 + ... + 18237.

It is an arithmetic number, because the mean of its divisors is an integer number (3901500).

Almost surely, 230103943 is an apocalyptic number.

30103943 is a deficient number, since it is larger than the sum of its proper divisors (1108057).

30103943 is a wasteful number, since it uses less digits than its factorization.

30103943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30103943 is about 5486.7060245652. The cubic root of 30103943 is about 311.0816981216.

The spelling of 30103943 in words is "thirty million, one hundred three thousand, nine hundred forty-three".

Divisors: 1 29 599 1733 17371 50257 1038067 30103943