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1030401020 = 225116176781
BaseRepresentation
bin111101011010101…
…010101111111100
32122210212210110202
4331122222233330
54102240313040
6250125023032
734351156415
oct7532525774
92583783422
101030401020
114896a85a0
122490b4a78
1313562285c
149abc280c
15606d9015
hex3d6aabfc

1030401020 has 48 divisors (see below), whose sum is σ = 2399283936. Its totient is φ = 368544000.

The previous prime is 1030401017. The next prime is 1030401083. The reversal of 1030401020 is 201040301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a junction number, because it is equal to n+sod(n) for n = 1030400992 and 1030401010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24971 + ... + 51810.

It is an arithmetic number, because the mean of its divisors is an integer number (49985082).

Almost surely, 21030401020 is an apocalyptic number.

1030401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030401020 is an abundant number, since it is smaller than the sum of its proper divisors (1368882916).

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

1030401020 is a wasteful number, since it uses less digits than its factorization.

1030401020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76862 (or 76860 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1030401020 is about 32099.8601243058. The cubic root of 1030401020 is about 1010.0326820127.

Adding to 1030401020 its reverse (201040301), we get a palindrome (1231441321).

The spelling of 1030401020 in words is "one billion, thirty million, four hundred one thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 61 110 122 220 244 305 610 671 1220 1342 2684 3355 6710 13420 76781 153562 307124 383905 767810 844591 1535620 1689182 3378364 4222955 4683641 8445910 9367282 16891820 18734564 23418205 46836410 51520051 93672820 103040102 206080204 257600255 515200510 1030401020