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30210105156 = 223711291127411
BaseRepresentation
bin11100001000101010…
…011001111101000100
32212222101122100110120
4130020222121331010
5443332241331111
621513415221540
72116430441220
oct341052317504
985871570416
1030210105156
11118a28a9160
125a313778b0
132b05a79a8a
1416682db780
15bbc2cc406
hex708a99f44

30210105156 has 96 divisors (see below), whose sum is σ = 90914503680. Its totient is φ = 7576195200.

The previous prime is 30210105139. The next prime is 30210105197. The reversal of 30210105156 is 65150101203.

It is a super-3 number, since 3×302101051563 (a number of 32 digits) contains 333 as substring.

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, 536910 + ... + 590501.

It is an arithmetic number, because the mean of its divisors is an integer number (947026080).

Almost surely, 230210105156 is an apocalyptic number.

It is an amenable number.

30210105156 is an abundant number, since it is smaller than the sum of its proper divisors (60704398524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30210105156 is a wasteful number, since it uses less digits than its factorization.

30210105156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127465 (or 1127463 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 30210105156 its reverse (65150101203), we get a palindrome (95360206359).

The spelling of 30210105156 in words is "thirty billion, two hundred ten million, one hundred five thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 29 33 42 44 58 66 77 84 87 116 132 154 174 203 231 308 319 348 406 462 609 638 812 924 957 1218 1276 1914 2233 2436 3828 4466 6699 8932 13398 26796 1127411 2254822 3382233 4509644 6764466 7891877 12401521 13528932 15783754 23675631 24803042 31567508 32694919 37204563 47351262 49606084 65389838 74409126 86810647 94702524 98084757 130779676 148818252 173621294 196169514 228864433 260431941 347242588 359644109 392339028 457728866 520863882 686593299 719288218 915457732 1041727764 1078932327 1373186598 1438576436 2157864654 2517508763 2746373196 4315729308 5035017526 7552526289 10070035052 15105052578 30210105156