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10257989049 = 327113711723
BaseRepresentation
bin10011000110110110…
…00111110110111001
3222110220012211120100
421203123013312321
5132002021122144
64413520150013
7512126316420
oct114333076671
928426184510
1010257989049
114394405000
121ba3468309
13c76299309
146d451c2b7
1540086e269
hex2636c7db9

10257989049 has 96 divisors (see below), whose sum is σ = 18899232768. Its totient is φ = 5250722400.

The previous prime is 10257989047. The next prime is 10257989051. The reversal of 10257989049 is 94098975201.

It is an interprime number because it is at equal distance from previous prime (10257989047) and next prime (10257989051).

It is not a de Polignac number, because 10257989049 - 21 = 10257989047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10257988986 and 10257989004.

It is not an unprimeable number, because it can be changed into a prime (10257989047) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5952702 + ... + 5954424.

It is an arithmetic number, because the mean of its divisors is an integer number (196867008).

Almost surely, 210257989049 is an apocalyptic number.

It is an amenable number.

10257989049 is a deficient number, since it is larger than the sum of its proper divisors (8641243719).

10257989049 is a wasteful number, since it uses less digits than its factorization.

10257989049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 10257989049 in words is "ten billion, two hundred fifty-seven million, nine hundred eighty-nine thousand, forty-nine".

Divisors: 1 3 7 9 11 21 33 63 71 77 99 121 213 231 363 497 639 693 781 847 1089 1331 1491 1723 2343 2541 3993 4473 5169 5467 7029 7623 8591 9317 11979 12061 15507 16401 18953 25773 27951 36183 49203 56859 60137 77319 83853 94501 108549 122333 132671 170577 180411 208483 283503 366999 398013 541233 625449 661507 850509 856331 1100997 1194039 1345663 1459381 1876347 1984521 2293313 2568993 4036989 4378143 5953563 6879939 7706979 9419641 12110967 13134429 14802293 16053191 20639817 28258923 44406879 48159573 84776769 103616051 133220637 144478719 162825223 310848153 488475669 932544459 1139776561 1465427007 3419329683 10257989049