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30202032123438 = 237805027893257
BaseRepresentation
bin1101101110111111101010…
…11001010110111000101110
310221221021201112210000021120
412313133311121112320232
512424312230210422223
6144122342204441410
76235011340166310
oct667376531267056
9127837645700246
1030202032123438
11969467884a70a
123479433549266
1313b1068772116
14765b012c97b0
15375956858be3
hex1b77f5656e2e

30202032123438 has 32 divisors (see below), whose sum is σ = 69033379317504. Its totient is φ = 8629131655872.

The previous prime is 30202032123437. The next prime is 30202032123451. The reversal of 30202032123438 is 83432123020203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30202032123399 and 30202032123408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202032123433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33364506 + ... + 34257762.

It is an arithmetic number, because the mean of its divisors is an integer number (2157293103672).

Almost surely, 230202032123438 is an apocalyptic number.

30202032123438 is an abundant number, since it is smaller than the sum of its proper divisors (38831347194066).

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

30202032123438 is a wasteful number, since it uses less digits than its factorization.

30202032123438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698296.

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 30202032123438 in words is "thirty trillion, two hundred two billion, thirty-two million, one hundred twenty-three thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 805027 893257 1610054 1786514 2415081 2679771 4830162 5359542 5635189 6252799 11270378 12505598 16905567 18758397 33811134 37516794 719096002939 1438192005878 2157288008817 4314576017634 5033672020573 10067344041146 15101016061719 30202032123438