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70906044 = 223112918523
BaseRepresentation
bin1000011100111…
…11000010111100
311221102101210210
410032133002330
5121122443134
611011432420
71520456106
oct416370274
9157371723
1070906044
113702a840
121b8b5710
13118c8051
1495ba576
1563592e9
hex439f0bc

70906044 has 48 divisors (see below), whose sum is σ = 186721920. Its totient is φ = 20744640.

The previous prime is 70906037. The next prime is 70906049. The reversal of 70906044 is 44060907.

70906044 = T115 + T116 + ... + T752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70906049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5434 + ... + 13089.

It is an arithmetic number, because the mean of its divisors is an integer number (3890040).

Almost surely, 270906044 is an apocalyptic number.

It is an amenable number.

70906044 is an abundant number, since it is smaller than the sum of its proper divisors (115815876).

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

70906044 is a wasteful number, since it uses less digits than its factorization.

70906044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18570 (or 18568 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 70906044 is about 8420.5726646114. The cubic root of 70906044 is about 413.8990395367.

The spelling of 70906044 in words is "seventy million, nine hundred six thousand, forty-four".

Divisors: 1 2 3 4 6 11 12 22 29 33 44 58 66 87 116 132 174 319 348 638 957 1276 1914 3828 18523 37046 55569 74092 111138 203753 222276 407506 537167 611259 815012 1074334 1222518 1611501 2148668 2445036 3223002 5908837 6446004 11817674 17726511 23635348 35453022 70906044