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65507420070 = 23251364953327
BaseRepresentation
bin111101000000100010…
…111110011110100110
320021002022202201210100
4331000202332132212
52033124344420240
650032123204530
74506222611661
oct750042763646
9207068681710
1065507420070
112586625a2a4
1210842376746
13623c76b331
1432560bc6d8
151a85edae30
hexf408be7a6

65507420070 has 48 divisors (see below), whose sum is σ = 170334964800. Its totient is φ = 17467037952.

The previous prime is 65507420059. The next prime is 65507420117. The reversal of 65507420070 is 7002470556.

65507420070 is a `hidden beast` number, since 65 + 507 + 4 + 20 + 0 + 70 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1201747 + ... + 1255073.

It is an arithmetic number, because the mean of its divisors is an integer number (3548645100).

Almost surely, 265507420070 is an apocalyptic number.

65507420070 is an abundant number, since it is smaller than the sum of its proper divisors (104827544730).

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

65507420070 is a wasteful number, since it uses less digits than its factorization.

65507420070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66989 (or 66986 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 65507420070 in words is "sixty-five billion, five hundred seven million, four hundred twenty thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 13649 27298 40947 53327 68245 81894 106654 122841 136490 159981 204735 245682 266635 319962 409470 479943 533270 614205 799905 959886 1228410 1599810 2399715 4799430 727860223 1455720446 2183580669 3639301115 4367161338 6550742007 7278602230 10917903345 13101484014 21835806690 32753710035 65507420070