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905215435132 = 223172176732797
BaseRepresentation
bin11010010110000110000…
…10110110000101111100
310012112112000112122020111
431023003002312011330
5104312340122411012
61531503352155404
7122254040146531
oct15130302660574
93175460478214
10905215435132
11319999572468
1212752a998b64
13674911476b8
1431b53d26d88
151883033aba7
hexd2c30b617c

905215435132 has 24 divisors (see below), whose sum is σ = 1589245719264. Its totient is φ = 451145449152.

The previous prime is 905215435097. The next prime is 905215435133. The reversal of 905215435132 is 231534512509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905215435133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27584158 + ... + 27616954.

It is an arithmetic number, because the mean of its divisors is an integer number (66218571636).

Almost surely, 2905215435132 is an apocalyptic number.

It is an amenable number.

905215435132 is a deficient number, since it is larger than the sum of its proper divisors (684030284132).

905215435132 is a wasteful number, since it uses less digits than its factorization.

905215435132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54885 (or 54883 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 905215435132 in words is "nine hundred five billion, two hundred fifteen million, four hundred thirty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 317 634 1268 21767 32797 43534 65594 87068 131188 6900139 10396649 13800278 20793298 27600556 41586596 713892299 1427784598 2855569196 226303858783 452607717566 905215435132