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61455226441 = 7237310634919
BaseRepresentation
bin111001001111000001…
…000101011001001001
312212121220211222010211
4321033001011121021
52001330014221231
644122050441121
74303626543250
oct711701053111
9185556758124
1061455226441
1124076967244
12bab12931a1
135a450a3c1b
142d8dc5d797
1518ea3a5eb1
hexe4f045649

61455226441 has 32 divisors (see below), whose sum is σ = 74377175040. Its totient is φ = 49638593664.

The previous prime is 61455226421. The next prime is 61455226501. The reversal of 61455226441 is 14462255416.

It is a cyclic number.

It is not a de Polignac number, because 61455226441 - 211 = 61455224393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61455226394 and 61455226403.

It is not an unprimeable number, because it can be changed into a prime (61455226421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12490980 + ... + 12495898.

It is an arithmetic number, because the mean of its divisors is an integer number (2324286720).

Almost surely, 261455226441 is an apocalyptic number.

It is an amenable number.

61455226441 is a deficient number, since it is larger than the sum of its proper divisors (12921948599).

61455226441 is a wasteful number, since it uses less digits than its factorization.

61455226441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6085.

The product of its digits is 230400, while the sum is 40.

The spelling of 61455226441 in words is "sixty-one billion, four hundred fifty-five million, two hundred twenty-six thousand, four hundred forty-one".

Divisors: 1 7 23 73 161 511 1063 1679 4919 7441 11753 24449 34433 77599 113137 171143 359087 543193 791959 1784777 2513609 5228897 8259001 12493439 36602279 57813007 120264631 381709481 841852417 2671966367 8779318063 61455226441