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30503052755 = 5723111733923
BaseRepresentation
bin11100011010000111…
…111010010111010011
32220201210212122000122
4130122013322113103
5444432240142010
622002442140455
72126615445650
oct343207722723
986653778018
1030503052755
1111a331a600a
125ab34b172b
132b51678856
141695196c27
15bd7d96855
hex71a1fa5d3

30503052755 has 32 divisors (see below), whose sum is σ = 43691940864. Its totient is φ = 19988470656.

The previous prime is 30503052737. The next prime is 30503052773. The reversal of 30503052755 is 55725030503.

It is an interprime number because it is at equal distance from previous prime (30503052737) and next prime (30503052773).

It is not a de Polignac number, because 30503052755 - 26 = 30503052691 is a prime.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 882224 + ... + 916146.

It is an arithmetic number, because the mean of its divisors is an integer number (1365373152).

Almost surely, 230503052755 is an apocalyptic number.

30503052755 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30503052755 is a deficient number, since it is larger than the sum of its proper divisors (13188888109).

30503052755 is a wasteful number, since it uses less digits than its factorization.

30503052755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35075.

The product of its (nonzero) digits is 78750, while the sum is 35.

The spelling of 30503052755 in words is "thirty billion, five hundred three million, fifty-two thousand, seven hundred fifty-five".

Divisors: 1 5 7 23 35 115 161 805 1117 5585 7819 25691 33923 39095 128455 169615 179837 237461 780229 899185 1187305 3901145 5461603 27308015 37891991 189459955 265243937 871515793 1326219685 4357578965 6100610551 30503052755