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30374999971 = 195371424843
BaseRepresentation
bin11100010010011111…
…011011011110100011
32220101212220212121221
4130102133123132203
5444201444444341
621542025355511
72123502145141
oct342237333643
986355825557
1030374999971
1111977994068
125a78638b97
132b30c92484
141682182591
15bcb9eeed1
hex7127db7a3

30374999971 has 16 divisors (see below), whose sum is σ = 33035869440. Its totient is φ = 27835647840.

The previous prime is 30374999969. The next prime is 30375000017. The reversal of 30374999971 is 17999947303.

It is a cyclic number.

It is not a de Polignac number, because 30374999971 - 21 = 30374999969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30374999771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140925 + ... + 283918.

It is an arithmetic number, because the mean of its divisors is an integer number (2064741840).

Almost surely, 230374999971 is an apocalyptic number.

30374999971 is a deficient number, since it is larger than the sum of its proper divisors (2660869469).

30374999971 is a wasteful number, since it uses less digits than its factorization.

30374999971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424986.

The product of its (nonzero) digits is 11573604, while the sum is 61.

The spelling of 30374999971 in words is "thirty billion, three hundred seventy-four million, nine hundred ninety-nine thousand, nine hundred seventy-one".

Divisors: 1 19 53 71 1007 1349 3763 71497 424843 8072017 22516679 30163853 427816901 573113207 1598684209 30374999971