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75152430 = 23255914153
BaseRepresentation
bin1000111101010…
…11110000101110
312020102010202100
410132223300232
5123214334210
611242435530
71601533203
oct436536056
9166363670
1075152430
1139470151
1221202ba6
1312753ac2
149da3caa
1568e75c0
hex47abc2e

75152430 has 48 divisors (see below), whose sum is σ = 198722160. Its totient is φ = 19699584.

The previous prime is 75152423. The next prime is 75152437. The reversal of 75152430 is 3425157.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (75152423) and next prime (75152437).

It is a junction number, because it is equal to n+sod(n) for n = 75152394 and 75152403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75152437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1767 + ... + 12386.

It is an arithmetic number, because the mean of its divisors is an integer number (4140045).

Almost surely, 275152430 is an apocalyptic number.

75152430 is an abundant number, since it is smaller than the sum of its proper divisors (123569730).

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

75152430 is a wasteful number, since it uses less digits than its factorization.

75152430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14225 (or 14222 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 75152430 is about 8669.0501209763. The cubic root of 75152430 is about 422.0018380759.

Adding to 75152430 its reverse (3425157), we get a palindrome (78577587).

The spelling of 75152430 in words is "seventy-five million, one hundred fifty-two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 59 90 118 177 295 354 531 590 885 1062 1770 2655 5310 14153 28306 42459 70765 84918 127377 141530 212295 254754 424590 636885 835027 1273770 1670054 2505081 4175135 5010162 7515243 8350270 12525405 15030486 25050810 37576215 75152430