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1373992480 = 25571226779
BaseRepresentation
bin101000111100101…
…0111011000100000
310112202102001100101
41101321113120200
510303220224410
6344201232144
746022512660
oct12171273040
93482361311
101373992480
11645645983
12324192654
1318b873b03
14d06a21a0
1580958d3a
hex51e57620

1373992480 has 48 divisors (see below), whose sum is σ = 3709782720. Its totient is φ = 471082752.

The previous prime is 1373992471. The next prime is 1373992489. The reversal of 1373992480 is 842993731.

It is an interprime number because it is at equal distance from previous prime (1373992471) and next prime (1373992489).

It is a self number, because there is not a number n which added to its sum of digits gives 1373992480.

It is not an unprimeable number, because it can be changed into a prime (1373992489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612270 + ... + 614509.

It is an arithmetic number, because the mean of its divisors is an integer number (77287140).

Almost surely, 21373992480 is an apocalyptic number.

1373992480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373992480 is an abundant number, since it is smaller than the sum of its proper divisors (2335790240).

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

1373992480 is a wasteful number, since it uses less digits than its factorization.

1373992480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226801 (or 1226793 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1373992480 is about 37067.4045490104. The cubic root of 1373992480 is about 1111.7183783841.

The spelling of 1373992480 in words is "one billion, three hundred seventy-three million, nine hundred ninety-two thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 1226779 2453558 4907116 6133895 8587453 9814232 12267790 17174906 19628464 24535580 34349812 39256928 42937265 49071160 68699624 85874530 98142320 137399248 171749060 196284640 274798496 343498120 686996240 1373992480