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30057302902 = 21122272572129
BaseRepresentation
bin11011111111100011…
…100000101101110110
32212120202010012011211
4123333203200231312
5443024132143102
621450320152034
72112563600464
oct337743405566
985522105154
1030057302902
1111824622600
1259aa16861a
132ab0209543
141651cc3834
15badb977d7
hex6ff8e0b76

30057302902 has 48 divisors (see below), whose sum is σ = 49992752880. Its totient is φ = 13542932480.

The previous prime is 30057302831. The next prime is 30057302917. The reversal of 30057302902 is 20920375003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14116974 + ... + 14119102.

It is an arithmetic number, because the mean of its divisors is an integer number (1041515685).

Almost surely, 230057302902 is an apocalyptic number.

30057302902 is a deficient number, since it is larger than the sum of its proper divisors (19935449978).

30057302902 is a wasteful number, since it uses less digits than its factorization.

30057302902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

Adding to 30057302902 its reverse (20920375003), we get a palindrome (50977677905).

The spelling of 30057302902 in words is "thirty billion, fifty-seven million, three hundred two thousand, nine hundred two".

Divisors: 1 2 11 22 121 227 242 257 454 514 2129 2497 2827 4258 4994 5654 23419 27467 31097 46838 54934 58339 62194 116678 257609 483283 515218 547153 641729 966566 1094306 1283458 5316113 6018683 7059019 10632226 12037366 14118038 58477243 66205513 116954486 124203731 132411026 248407462 1366241041 2732482082 15028651451 30057302902