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23903000217 = 3219223794049
BaseRepresentation
bin10110010000101110…
…101101011010011001
32021200211201020000100
4112100232231122121
5342423132001332
614551512130013
71504224102165
oct262056553231
967624636010
1023903000217
11a156690938
124771096909
13233c196315
14122a7c9ca5
1594d73067c
hex590bad699

23903000217 has 72 divisors (see below), whose sum is σ = 38514528000. Its totient is φ = 14253947136.

The previous prime is 23903000203. The next prime is 23903000239. The reversal of 23903000217 is 71200030932.

It is not a de Polignac number, because 23903000217 - 24 = 23903000201 is a prime.

It is a super-3 number, since 3×239030002173 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23903000267) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5901409 + ... + 5905457.

It is an arithmetic number, because the mean of its divisors is an integer number (534924000).

Almost surely, 223903000217 is an apocalyptic number.

It is an amenable number.

23903000217 is a deficient number, since it is larger than the sum of its proper divisors (14611527783).

23903000217 is a wasteful number, since it uses less digits than its factorization.

23903000217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195 (or 4173 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The spelling of 23903000217 in words is "twenty-three billion, nine hundred three million, two hundred seventeen", and thus it is an aban number.

Divisors: 1 3 9 19 23 57 69 79 171 207 237 361 437 711 1083 1311 1501 1817 3249 3933 4049 4503 5451 8303 12147 13509 16353 24909 28519 34523 36441 74727 76931 85557 93127 103569 230793 256671 279381 310707 319871 655937 692379 838143 959613 1461689 1769413 1967811 2878839 4385067 5308239 5903433 6077549 7357033 13155201 15924717 18232647 22071099 33618847 54697941 66213297 100856541 115473431 139783627 302569623 346420293 419350881 1039260879 1258052643 2655888913 7967666739 23903000217