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67896370040 = 23517195255137
BaseRepresentation
bin111111001110111100…
…000110001101111000
320111020210222222001212
4333032330012031320
52103022432320130
651105142502252
74622351423462
oct771674061570
9214223888055
1067896370040
1126881804814
12111aa434988
1365306884b5
1434014a3132
151b75acce95
hexfcef06378

67896370040 has 64 divisors (see below), whose sum is σ = 170266471200. Its totient is φ = 24215666688.

The previous prime is 67896370039. The next prime is 67896370043. The reversal of 67896370040 is 4007369876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67896370043) 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, 2614649 + ... + 2640488.

Almost surely, 267896370040 is an apocalyptic number.

It is an amenable number.

67896370040 is an abundant number, since it is smaller than the sum of its proper divisors (102370101160).

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

67896370040 is a wasteful number, since it uses less digits than its factorization.

67896370040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255184 (or 5255180 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 67896370040 in words is "sixty-seven billion, eight hundred ninety-six million, three hundred seventy thousand, forty".

Divisors: 1 2 4 5 8 10 17 19 20 34 38 40 68 76 85 95 136 152 170 190 323 340 380 646 680 760 1292 1615 2584 3230 6460 12920 5255137 10510274 21020548 26275685 42041096 52551370 89337329 99847603 105102740 178674658 199695206 210205480 357349316 399390412 446686645 499238015 714698632 798780824 893373290 998476030 1697409251 1786746580 1996952060 3394818502 3573493160 3993904120 6789637004 8487046255 13579274008 16974092510 33948185020 67896370040