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75003412 = 221119731229
BaseRepresentation
bin1000111100001…
…11011000010100
312020010120100011
410132013120110
5123200102122
611235330004
71600342561
oct436073024
9166116304
1075003412
11393791a0
1221150904
1312701023
149d65868
1568b8377
hex4787614

75003412 has 48 divisors (see below), whose sum is σ = 152913600. Its totient is φ = 31829760.

The previous prime is 75003377. The next prime is 75003419. The reversal of 75003412 is 21430057.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75003419) 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, 60414 + ... + 61642.

It is an arithmetic number, because the mean of its divisors is an integer number (3185700).

Almost surely, 275003412 is an apocalyptic number.

It is an amenable number.

75003412 is an abundant number, since it is smaller than the sum of its proper divisors (77910188).

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

75003412 is a wasteful number, since it uses less digits than its factorization.

75003412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 75003412 is about 8660.4510275158. The cubic root of 75003412 is about 421.7227276478.

Adding to 75003412 its reverse (21430057), we get a palindrome (96433469).

The spelling of 75003412 in words is "seventy-five million, three thousand, four hundred twelve".

Divisors: 1 2 4 11 19 22 38 44 73 76 146 209 292 418 803 836 1229 1387 1606 2458 2774 3212 4916 5548 13519 15257 23351 27038 30514 46702 54076 61028 89717 93404 179434 256861 358868 513722 986887 1027444 1704623 1973774 3409246 3947548 6818492 18750853 37501706 75003412