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53211044404 = 2272299382651
BaseRepresentation
bin110001100011101000…
…000001101000110100
312002100100222010110101
4301203220001220310
51332434011410104
640240025203444
73562422262150
oct614350015064
9162310863411
1053211044404
112062627a261
12a390330584
1350300a75bb
14280ad92060
1515b67255a4
hexc63a01a34

53211044404 has 24 divisors (see below), whose sum is σ = 106428004928. Its totient is φ = 22803465600.

The previous prime is 53211044401. The next prime is 53211044521. The reversal of 53211044404 is 40444011235.

It is a super-3 number, since 3×532110444043 (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53211044401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602479 + ... + 685129.

Almost surely, 253211044404 is an apocalyptic number.

It is an amenable number.

53211044404 is an abundant number, since it is smaller than the sum of its proper divisors (53216960524).

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

53211044404 is a wasteful number, since it uses less digits than its factorization.

53211044404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105655 (or 105653 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 53211044404 its reverse (40444011235), we get a palindrome (93655055639).

The spelling of 53211044404 in words is "fifty-three billion, two hundred eleven million, forty-four thousand, four hundred four".

Divisors: 1 2 4 7 14 28 22993 45986 82651 91972 160951 165302 321902 330604 578557 643804 1157114 2314228 1900394443 3800788886 7601577772 13302761101 26605522202 53211044404