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30011911206 = 231921111172
BaseRepresentation
bin11011111100110110…
…010110110000100110
32212110120201001110220
4123330312112300212
5442431022124311
621442015225210
72111503015254
oct337466266046
985416631426
1030011911206
1111800a3a102
125996b18206
132aa39a5854
141649c695d4
15ba9bcd206
hex6fcd96c26

30011911206 has 48 divisors (see below), whose sum is σ = 63539300160. Its totient is φ = 9424084320.

The previous prime is 30011911201. The next prime is 30011911273. The reversal of 30011911206 is 60211911003.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011911201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26867760 + ... + 26868876.

It is an arithmetic number, because the mean of its divisors is an integer number (1323735420).

Almost surely, 230011911206 is an apocalyptic number.

30011911206 is an abundant number, since it is smaller than the sum of its proper divisors (33527388954).

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

30011911206 is a wasteful number, since it uses less digits than its factorization.

30011911206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The spelling of 30011911206 in words is "thirty billion, eleven million, nine hundred eleven thousand, two hundred six".

Divisors: 1 2 3 6 19 38 57 114 211 422 633 1117 1266 2234 3351 4009 6702 8018 12027 21223 24054 42446 63669 127338 235687 471374 707061 1247689 1414122 2495378 3743067 4478053 7486134 8956106 13434159 23706091 26868318 47412182 71118273 142236546 263262379 526524758 789787137 1579574274 5001985201 10003970402 15005955603 30011911206