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42552070 = 2511323139
BaseRepresentation
bin1010001001010…
…0101100000110
32222001212110121
42202110230012
541343131240
64120012154
71024454341
oct242245406
988055417
1042552070
1122024000
121230105a
138a7b352
145919458
153b0804a
hex2894b06

42552070 has 64 divisors (see below), whose sum is σ = 88542720. Its totient is φ = 14694240.

The previous prime is 42552067. The next prime is 42552073. The reversal of 42552070 is 7025524.

It is an interprime number because it is at equal distance from previous prime (42552067) and next prime (42552073).

It is a super-2 number, since 2×425520702 = 3621357322569800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42552073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306061 + ... + 306199.

It is an arithmetic number, because the mean of its divisors is an integer number (1383480).

Almost surely, 242552070 is an apocalyptic number.

42552070 is an abundant number, since it is smaller than the sum of its proper divisors (45990650).

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

42552070 is a wasteful number, since it uses less digits than its factorization.

42552070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 42552070 is about 6523.1947694362. The cubic root of 42552070 is about 349.1190634886.

Adding to 42552070 its reverse (7025524), we get a palindrome (49577594).

The spelling of 42552070 in words is "forty-two million, five hundred fifty-two thousand, seventy".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 121 139 230 242 253 278 506 605 695 1210 1265 1331 1390 1529 2530 2662 2783 3058 3197 5566 6394 6655 7645 13310 13915 15290 15985 16819 27830 30613 31970 33638 35167 61226 70334 84095 153065 168190 175835 185009 306130 351670 370018 386837 773674 925045 1850090 1934185 3868370 4255207 8510414 21276035 42552070